This Music Box Winding Key is made of , which can withstand the use. Features the iron material, which has high durability, not easy to deform. Fine workmanship, it ensures the practicality. The music box winding key can replace the old or broken original one. In addition, you can use it to diy windup jewelry, windup toy and windup crafts. Features -Color:Silver -Material:Iron -Size:2.50X1.00X0.70cm/0.98X0.39X0.28in -Thread:M3.5 - Adopting from iron material, which is lightweight, with and good workmanship. - The music box winding key can replace the old one. In addition, you can use it to diy windup jewelry, windup toy and windup crafts. - Great for replacing lost music box keys and for crafts. Simple design, yet practical for uses. - It's a replacement winder key for a music box. It can be used as a useful gift to music box lover. - Easy to be installed. Small and lightweight, which can be used for a long term. Package list: 10 x Wind Up Keys