{"product_id":"kaiersn-indoor-solf-golf-multi-functional-swing-aid-power-stick-swing-trainer-soft-baton-training-power-whip-foam-swing-stick","title":"Kaiersn Indoor Swing Trainer","description":"\u003ch2\u003eAbout this item\u003c\/h2\u003e\n\u003ctable style=\"width: 99.9623%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 53.8684%;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"width: 45.7135%;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eKaiersn\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eFE984\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eFlexible High-Density Foam Golf Swing Trainer — Power Whip \/ Swing Stick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eHigh-Density Foam — Soft, Flexible \u0026amp; Lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003e80 × 3 cm  \/  31.49 × 1.18 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003e238 g — Lightweight \u0026amp; Easy to Use Anywhere\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eColours Available\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eYellow, Red, Blue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eFlexibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eExtremely Flexible — Can Be Twisted, Looped \u0026amp; Knotted Without Damage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eTraining Benefits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eSwing Power, Tempo \u0026amp; Rhythm, Flexibility, Range of Motion, Blood Circulation, Internal Coordination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eUse Cases\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eGolf Swing Warm-Up, Tempo Training, Flexibility Drills, Strength Conditioning, Indoor \u0026amp; Outdoor Practice\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eCompatible Sports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eGolf, Tennis, Badminton, Baseball, Yoga — Multi-Sport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003e1 × Kaiersn FE984 Foam Swing Stick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eHigh-Concern Chemicals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 53.8684%;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 45.7135%;\"\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme Flexibility — Twist, Loop \u0026amp; Knot Without Damage\u003c\/strong\u003e — The Kaiersn FE984 is made from high-density foam that is so flexible it can be twisted into a full loop, tied into a knot, and bent into any shape without cracking, breaking, or losing its form — as demonstrated in the product images. This extreme flexibility is what makes it effective as a swing trainer: when swung at speed, the foam stick bends and whips through the air, providing immediate tactile and auditory feedback on swing tempo, path, and power. A swing that is too fast, too slow, or off-plane will produce a noticeably different whip response than a well-timed, on-plane swing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwing Power \u0026amp; Tempo Trainer — Build Speed Without a Club\u003c\/strong\u003e — The FE984 is used as a power whip trainer by swinging it through the golf swing motion at full speed. The resistance of the foam against the air during the swing builds the fast-twitch muscle activation and rotational power needed for clubhead speed, while the whip feedback trains the golfer to sequence the swing correctly — loading the backswing, transitioning smoothly, and accelerating through impact. Regular use builds swing speed and tempo without the risk of injury from swinging a heavy club.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexibility \u0026amp; Range of Motion Training — Warm Up \u0026amp; Cool Down\u003c\/strong\u003e — The soft, flexible foam stick is used for pre-round warm-up and post-round cool-down stretching routines — wrapping around the body, across the shoulders, and through the swing arc to improve flexibility and range of motion in the shoulders, torso, hips, and arms. The source content notes it improves blood circulation and enhances internal coordination — making it a useful warm-up tool for golfers of all ages, particularly those with limited flexibility or recovering from injury.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe for Indoor Use — No Damage to Walls, Furniture or People\u003c\/strong\u003e — Because the FE984 is made entirely from soft high-density foam, it can be swung at full speed indoors without risk of damage to walls, ceilings, furniture, or other people nearby. This makes it ideal for indoor swing practice in a living room, garage, or office — allowing golfers to maintain swing mechanics and muscle memory between outdoor rounds without needing to go to a range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e238g \u0026amp; 80cm — Lightweight, Portable \u0026amp; No Setup Required\u003c\/strong\u003e — At 238g and 80cm long, the FE984 is light enough to carry in a golf bag side pocket, a gym bag, or a carry-on bag for travel. No setup, no net, no mat, and no hitting required — just pick it up and swing. Available in Yellow, Red, and Blue.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe Kaiersn FE984 is a flexible high-density foam golf swing trainer designed for golfers who want to build swing power, improve tempo and rhythm, and maintain flexibility — indoors or outdoors, with no setup required. The extreme flexibility of the foam stick provides immediate whip feedback on swing tempo, path, and power when swung at speed, building fast-twitch muscle activation and rotational power without the injury risk of swinging a heavy club. The same flexibility makes it an effective warm-up and stretching tool for improving range of motion in the shoulders, torso, and hips before a round. Safe for indoor use — the soft foam construction means it can be swung at full speed without risk of damage to walls, furniture, or people nearby. 238g, 80cm, no setup required. Available in Yellow, Red, and Blue. A simple, practical, and genuinely effective swing training tool from Kaiersn — for golfers who want to practise anywhere, any time.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sacd56104ea93487db486a1e9db6df0e3P.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7f934651a79d47979f0de8ed4de99c71I.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S41342c3a20ac4435a812c31d614418cby.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S663d573ff38f48e98132fe72daf8a795e.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd32271ce64214936ab7a066d38599f6bf.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S69eb062f89c74c26b5d8c2cadb387a2cU.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0af736a7106740c5baac8aebd451df89M.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0c12021d751248e7a1a0a82d000e8a38y.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6282590ff3ee45519fdd8b0be1b1feffY.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sea1e8f6077e2433eb8b134a04fde1e6bN.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3cb72cea9d6a4a15b94af8e162db32a0u.jpg\" style=\"width: 100%; height: auto;\"\u003e\u003c\/p\u003e","brand":"Heartbeat of Golf","offers":[{"title":"YELLOW","offer_id":48343834001666,"sku":"14:366","price":41.17,"currency_code":"NZD","in_stock":true},{"title":"Red","offer_id":48343834034434,"sku":"14:10","price":41.17,"currency_code":"NZD","in_stock":true},{"title":"Blue","offer_id":48343834067202,"sku":"14:173","price":41.17,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0763\/5268\/4290\/files\/S22fd188cbff04020849086cb6edfabc0M.webp?v=1787011172","url":"https:\/\/heartbeatofgolf.com\/products\/kaiersn-indoor-solf-golf-multi-functional-swing-aid-power-stick-swing-trainer-soft-baton-training-power-whip-foam-swing-stick","provider":"Heartbeat of Golf","version":"1.0","type":"link"}