{"product_id":"stm-gjacksys","title":"STM G-Jack G-Jack System Coarse Adjustment Kit for Variable Weight Grips Weight Adjustment Set Wrench \u0026 Dedicated Case Included Golf Grip Customization Balance Adjustment","description":"\u003cp\u003eThe STM G-Jack System Coarse Adjustment Kit is a dedicated adjustment kit developed to maximize the performance of the variable weight G-Jack grip. Its greatest feature is the ability to finely tune the overall club balance and feel of the swing by attaching weights inside the grip. With one of each weight from 2g to 20g included, it allows for a wide range of settings, from a light swing through to a solid feel.\u003c\/p\u003e\u003cp\u003eYou can adjust it before a round to match your physical condition and swing for the day, and also enjoy the process of finding the optimal weight balance for you. Since adjustments can be made easily even after replacing the grip, the ability to change the feel without buying a new club is also a significant advantage.\u003c\/p\u003e\u003cp\u003eA dedicated wrench and a convenient carrying case are included, allowing for smooth adjustments at home or on the golf course. Changing the club balance can stabilize your swing tempo, leading to improved direction and consistency.\u003c\/p\u003e\u003cp\u003eThis kit is recommended not only for those interested in customizing their golf clubs and advanced players who want to fine-tune their swing balance, but also for beginners struggling with their swing feel. It's an item that expands the joy of adjustment, and G-Jack users should definitely try it.\u003c\/p\u003e\u003cp\u003e＜Specifications＞\u003c\/p\u003e\u003cp\u003eSet Contents and Specifications\u003c\/p\u003e\u003cp\u003eWeight Composition:\u003c\/p\u003e\u003cp\u003eーー2g: Aluminum\u003c\/p\u003e\u003cp\u003eーー4g ～ 8g: Stainless Steel\u003c\/p\u003e\u003cp\u003eーー10g ～ 20g: Tungsten (1 each)\u003c\/p\u003e\u003cp\u003eAccessories:\u003c\/p\u003e\u003cp\u003eーーDedicated Wrench\u003c\/p\u003e\u003cp\u003eーーDedicated Case\u003c\/p\u003e\u003cp\u003eScrew Standard:\u003c\/p\u003e\u003cp\u003eーーCoarse Adjustment Kit\u003c\/p\u003e\u003cp\u003eーー※Because it is specified as \"coarse,\" the pitch (spacing) of the screw threads and other specifications are set.\u003c\/p\u003e\u003cp\u003eーーThe receiving end of the grip or shaft used must be compatible with coarse threads.\u003c\/p\u003e\u003cp\u003eProduct Overview\u003c\/p\u003e\u003cp\u003eBrand: STM (STM GOLF)\u003c\/p\u003e\u003cp\u003eProduct Name: G-JACK System\u003c\/p\u003e\u003cp\u003e＜Keywords＞\u003c\/p\u003e\u003cp\u003eSTM\u003c\/p\u003e\u003cp\u003eG-Jack\u003c\/p\u003e\u003cp\u003eG-Jack System\u003c\/p\u003e\u003cp\u003eCoarse Adjustment Kit\u003c\/p\u003e\u003cp\u003eVariable Weight Grip\u003c\/p\u003e\u003cp\u003eGrip Weight\u003c\/p\u003e\u003cp\u003eGolf Balance Adjustment\u003c\/p\u003e\u003cp\u003eSwing Balance\u003c\/p\u003e\u003cp\u003eGrip Adjustment\u003c\/p\u003e\u003cp\u003eGolf Customization\u003c\/p\u003e\u003cp\u003eWith Wrench\u003c\/p\u003e\u003cp\u003eWeight Set\u003c\/p\u003e\u003cp\u003eGolf Equipment\u003c\/p\u003e\u003cp\u003eBeginner Golf Adjustment\u003c\/p\u003e\u003cp\u003eAdvanced Golf Adjustment\u003c\/p\u003e\u003cp\u003eClub Fitting\u003c\/p\u003e\u003cp\u003eSwing Feel Adjustment\u003c\/p\u003e\u003cp\u003eGolf Practice Equipment\u003c\/p\u003e\n\u003c!-- rakuten_sync_hash: 1683c47f781dc00013aaa158e5c00b2a | ai_optimized: true --\u003e","brand":"アップサイドゴルフ本店","offers":[{"title":"Default Title","offer_id":48226718187749,"sku":"10012001","price":13200.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/0407\/0885\/files\/stm-gjacksys-1.jpg?v=1784956423","url":"https:\/\/upsidegolf.co.jp\/en\/products\/stm-gjacksys","provider":"UpsideGolf","version":"1.0","type":"link"}