Are you ready to build a motorcylce, race car, truck, train or airplane? The piece selection in this 130 piece set was specifically designed for making vehicles. It includes soft wheels that snap on and off any Playstix piece and can also be used as a steering wheel. This set includes an Idea Booklet that provides some great examples of vehicles you can make. Groovy Shape: Each Playstix piece has grooves that interlock when one plyastix piece is placed across another. The different length Playstix pieces are color-coded, so it’s easy to see how each model is built.