Originally inspired by children playing with pencils and spools, Tinkertoys have become as much a part of growing up in America as peanut butter and jelly. This Junior Builder Set is a great starter, featuring simple, colorful components. There's enough here to build a Ferris wheel, and airplane or whatever your child's imagination cooks up. The set comes with 34 rods, 12 spools, 8 connectors, 4 pulleys/wheels, 4 endcaps, 4 plastic Tinkertoy flags and instructions. It's all packaged in the handy canister you remember. Best of all, all Tinkertoy kits are fully interchangeable, so you can add on more sets as your child grows.