One shape, endless possibility! Every brick easily connects to the next. Create colorful flat mosaics or work in 3-D to make more intricate builds. Mix and match any Plus-Plus set to bring more ideas to life! STEM | STEAM Toy: Plus-Plus empowers children with free explorative play as they encourage fine motor skills, logic, creativity, imagination - now with movement and motion. Part engineering, part art, with a bit of math and a whole lot of FUN! The GO! Crazy Cart includes 240 pieces in 9 different colors, 4 wheels, and 1 baseplate along with instructions. Follow the step-by-step included instructions to build the Crazy Cart and then use your imagination and other Plus-Plus pieces to customize and trick out your ride! The possibilities are endless.