Made of steel material, this clock winding key is exquisitely crafted and durable. Scratch-resistant and wear-resistant. Easy to insert and remove, suitable for your clock use. Reasonable structure and excellent performance are a good choice for clock tools. Can serve you . Features - Color: silver. - Material: steel. - Size: 5.50X5.10X0.70cm/ 2.16X2.00X0.28inch. - Note: Suitable for 4.4mm clocks. - 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. - Light weight, suitable size, reasonable structure, very suitable for personal or professional use. - Easy to operate, comfortable to hold, saving time and energy and bring you convenience. - Suitable length, no burrs, you can use it with confidence, this is a good choice for clock tools. Package list: 2 x Clock Winding Keys