Grow into this 100-piece deluxe set or use it as a starter. This gears set will help usher your child into the world of engineering games as they discover endless building possibilities. Our gears are made to challenge motor skills, creativity, and hands-on construction play, so get ready to snap these sturdy plastic pieces into place and create something amazing. Compatible with all other Gears!Gears!Gears!? sets for even more imaginative fun.