Features Comfortable Use - The ergonomic design is comfortable to hold. A non-slip grip helps during long string-changing sessions.built To Last - Made from heavy-duty plastic. No worry about corrosion or damage from elements. Last longer and perform better.easy To Use - Easy to use. No need to manually turn tuning pegs or remove bridge pins, saving time and effort.compatibility - The classic guitar string winder works flawlessly with most string instruments, including guitars, mandolins, basses, ukuleles, and banjos.Product Specification:Color: Solid BlueMaterial: PlasticItem Weight: 0.24 LBProduct Dimensions: 7 x 5.5 x 1.5 inchesPackage Includes:6x Guitar String Winder