PicassoTiles 40pc Mini Diamond Series Magnetic Tile Race Track Set LED Car Travel Size Magnet Block Toy Set Magnetized Building Fine Motor Skill STEM Education Learning Development Kit Ages 3+ PTMR40 PicassoTiles' Mini Diamond Series Magnetic Tile Race Track Set enhances creativity. This travel-friendly toy set features 40 travel-size pieces, including columns, slopes, a traffic sign kit, plus a LED car, all designed for pretend play and more. This building race track stacking block toy has quick connect magnetized edges to easily put the parts together to engineer the architectural structure and design simply through the laws of physics and power of magnets.