Whether you're a collector or just looking to replace a lost key, these for music boxes are the solution. Each key is designed to fit a variety of winding mechanisms, making them . To use, insert the key into the winding slot and turn it to wind up the music box. Features -Color:Silver -Material:Plastic,metal -Size:1.60X1.50X0.50cm/0.63X0.59X0.20in -Charming : the winding keys feature a charming , adding a whimsical and delightful touch to children's music boxes -Simple winding key: the included winding key is designed for simplicity, making it easy to wind up the music box and adjust the music for a seamless experience -Comprehensive music box parts: this set comes with all the essential parts needed for your music box, allowing for easy replacement of music discs and ensuring optimal performance -Classic rotating music: the rotating music feature offers a classic and captivating experience, providing children with enchanting melodies that spark their imagination - and safe materials: made from plastic and metal materials, these winding keys are safe for children and designed to be , ensuring longterm use and reliability Package list: 4 pcs x 10 music boxes