{"product_id":"b0chbh9lkf","title":"FENDER Patented Callus Builder \u0026 Finger Strengthener – Resistance Finger Exerciser for Guitar, Bass \u0026 Violin – Guitar Finger Trainer \u0026 Grip Strength Tool – Ideal Guitar \u0026 Bass Accessories (Tensions: RED=8-Lbs; BLACK=15-Lbs)","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eESSENTIAL GUITAR \u0026amp; BASS ACCESSORY – From beginners to pros, this must-have guitar finger trainer improves strength, coordination, and endurance—perfect for daily guitar training or warm-ups before a performance.\u003c\/li\u003e\n\u003cli\u003eLICENSED and PATENTED FENDER CALLUS BUILDER – Designed in the shape of Fender’s iconic Stratocaster, this officially licensed guitar callus builder is a standout in any collection of guitar \u0026amp; bass accessories.\u003c\/li\u003e\n\u003cli\u003eRAISED STRING-LIKE RIDGES – Unlike typical strength training grip strengtheners, this exclusive patented design includes raised ridges that simulate real string tension to help build calluses—ideal for realistic guitar finger exerciser practice.\u003c\/li\u003e\n\u003cli\u003eMIRRORS PLAYING POSITION – Ergonomically shaped to replicate your hand and finger angles while playing any stringed instrument, making it a versatile tool to build calluses where you need them.\u003c\/li\u003e\n\u003cli\u003eHIGHEST TENSION AVAILABLE – Included both 8-lb (RED) or 15-lb (BLACK) resistance. The BLACK version delivers extreme resistance—unmatched by any other guitar finger trainer or hand exerciser on the market.\u003c\/li\u003e\n\u003cli\u003ePERFECT HOLIDAY GIFT \u0026amp; STOCKING STUFFER – A thoughtful holiday gift that shows you support their musical journey. The ideal add-on for anyone receiving a new guitar! Compact, affordable, and fun to use — musicians of all ages LOVE this in their stocking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eOverview\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eColor : Red, Black\u003c\/li\u003e\n\u003cli\u003eMaterial : Plastic\u003c\/li\u003e\n\u003cli\u003eBrand : Fender\u003c\/li\u003e\n\u003cli\u003eItem Weight : 6 Ounces\u003c\/li\u003e\n\u003cli\u003eStyle : Guitar-shaped\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Fender","offers":[{"title":"Default Title","offer_id":43879821869092,"sku":"B0CHBH9LKF","price":48.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/1830\/6340\/files\/71ep_1WdALL._AC_SX679.jpg?v=1774497713","url":"https:\/\/gripra.us\/products\/b0chbh9lkf","provider":"Gripra","version":"1.0","type":"link"}