The Bristle Blocks is a lot of more than 70 interlocking building toy pieces made of plastic. This mixed lot includes various pieces such as bricks, wheels, and specialty blocks, all in vibrant multicolor. Designed for ages 2 and up, this STEM-themed set offers stackable pieces for endless creative play. The Bristle Blocks brand ensures quality and durability, making it a sensory and construction toy perfect for young builders and creators.