Made of steel material, this clock winding key is exquisitely crafted. Scratch-resistant and wear-resistant. Easy to insert and remove, suitable for your clock use. Reasonable structure, for clock tool. Features -Color:Assorted Color -Material:Steel -Size:6.00X5.20X0.70cm/2.36X2.04X0.28in -Size:5.50X5.10X0.70cm/2.16X2.00X0.28in - Hole diameter: 4.4mm - Made of steel material, the craftsmanship makes this winding key not easy to bend or break. - workmanship, scratch-resistant and wear-resistant. Easy to insert and remove, suitable for your clock use. - Lightweight, suitable size, reasonable structure, personal or professional use. - Easy to operate, comfortable to hold, saving time and effort and bring you convenience. - Suitable length, no burrs, you can use it with confidence, this is a for clock tool. Package list: 2 x Clock Winding Keys