Made of steel material, and with fine workmanship, the clock winding key is durable, , anti-scraping and wear-resistant. Easy to insert and remove, perfectly fit for your clock. Simple elegant design meet all your need. for your clock. Features -Color:Silver -Material:steel -Size:6.80X5.20X0.50cm/2.67X2.04X0.20in - Steel material, durable, not easy to be damaged or deformed, sturdy and durable, strong toughness. - The winding key is used for the old mechanical stand clock. Perfect for most old mechanical desk clocks and wooden clocks. - Stable, high hardness, easy to use, both individuals and professionals can use. - Small size, light weight, and will not take up much space. Very convenient. - The reasonable length and structure design are more in line with the comfortable grip during operation and serve you better. Package list: 2 x Clock Winding Keys