Erector 5 Model Set features captivating moving parts. Packed with 147 pieces, you will create ingenious movement with a plethora of shiny steel girders, plates, nuts amp bolts, wheels, amp real tools. Fabulous play value with new mechanisms including a pulley amp springs. Your kids will love playing with the moving models they create with the 5 Model Erector Set. Five, fun, eye catching designs with colorful, illustrated instructions. Try out a suggested model or design your own clever roving contraption. 5 Model Erector Set, A perfect starting set for the novice awaiting a new challenge in construction. Your enthusiasm for Erector originates here. Build 5 Super Erector Models, One at a time Bicycle, helicopter, dragster amp more Design your own clever roving contraption Includes tools, pulley amp spring mechanisms 147 Parts Illustrated Instructions Ages 8 Years UPC 724641335016