The design of the piano string winder makes string changes faster and easier than before. The piano string winder is made of High quality materials with high wear-resistant and excellent durability. It can be as a piano string, multifunctional piano repair tool. Simple disassembly, more convenient installation. You can send this practical and multifunctional string winder to your families and friends who play string instrument. Great for grand or upright pianos, which can solve piano change string as well. Colour:silver Material:aluminum alloy Package Contents: 1 x Wire Winder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.