This plastic clockwork mechanism is a must-have tool for crafting dynamic toys and robot. Its wind-up functionality brings creations to life, making it ideal for educational projects or novelty presents. Whether used for clay crafts or robot designs, it inspires creativity and provides endless and adults alike. Features -Color:White -Material:Plastic,metal -Size:4.50X4.50X3.50cm/1.77X1.77X1.38in -Boosts motor skills: this diy kit helps children develop fine motor skills and handeye coordination while building their own windup toys from scratch -clockwork fun: relive the charm of traditional clockwork toys with this easytouse mechanism, offering a yet modern crafting experience -Great for parties: suit as a party favor or stocking stuffer, this kit provides a unique and interactive idea that kids will love -Supports : introduce basic mechanical concepts through play, making this kit an excellent educational tool for young learners -DIY toy creations: design and build your own unique toys by integrating this mechanism into your crafts, allowing endless possibilities for creativity Package list: 15 x Wind up Toy Mechanisms