Erector Set 10 features simple & sophisticated moving parts. Includes a gear box to make your Erector creations really move. Packed with 220 parts, your child will create ingenious movement with a plethora of shiny steel girders, plates, nuts & bolts, wheels. Possibilities for design construction are virtually endless. Your kids will love playing with the moving Erector models they create. Everything included to build an variety of moving creations; motorcycle, front loader, lift, vehicle with propeller, & more. A range of eye-catching Erector designs with illustrated instructions. Design your own clever, roving contraption. Erector Set 10 Model Set, A perfect starting point for the beginner wanting a hands-on, creative challenge in construction.