This is a clockwork movement, mainly made of sturdy material. This clockwork movement is safe to use and easy to operate. It can be well applied to your clockwise toy repair. This is a very practical accessory that will bring you a better experience. Features -Color:Green -Material:Plastic -Size:4.50X3.00X2.00cm/1.77X1.18X0.79in - Unique mechanical structure Movements, the finished effect will and attractive. - The clockwise movement can replace the old or broken movement, and easy for repairing toy. - You can play the movement on the desk, and combine your clay work and this movement, a nice combination. - Cultivate your practical ability, mental ability, interests and hobbies with this clockwork movement. - This clockwork movement is the perfect DIY clockwork, will bring surprise to your friends who love DIY. Package list: 5 x Movements