FENDER Callus Builder and Finger Strengthener (Red 8 lbs) For people who play any stringed instrument (Guitar, Bass, Violin, etc.)

Essential Guitar & Bass Accessory - From beginners to professionals, this essential guitar training tool improves strength, coordination and endurance, perfect for daily guitar training or warm-ups before a performance. Licensed and Patented Fender Callus Builder Product – Designed in the shape of Fender's iconic Stratocaster, this officially licensed callus builder is a standout item in any guitar and bass accessory collection. ELEVATED PEGS LIKE STRINGS - Unlike typical grip reinforcements for strength training, this exclusive patented design includes raised ridges that simulate real string tension to help build calluses, ideal for realistic practice of guitar finger exercises. Mirrors Playing Position - Ergonomic shape to replicate the angles of your hand and fingers while playing any stringed instrument, making it a versatile tool for building calluses where you need them High tension available: choose between 8lb (red) or 15lb (black). The black version offers extreme resistance, unmatched by any other guitar finger trainer or hand exerciser on the market.