Little Reader Blocks are 3” cubes constructed of sturdy corrugated cardboard. The blocks are imprinted with over 100 preK-2 sight words that combine learning with play. Words are color-coded by type (adjective, noun, verb, etc.) to make sentence forming fun and easy. The set includes 18 pieces: 3 yellow adjective blocks, 3 green noun blocks, 5 blue verb blocks, 5 red pronon blocks, and 2 white preposition blocks. Kids can roll blocks like dice to form sentences, look for familiar letters or words, stack blocks to make sentences, and much more. Guided play activities are included. Adult assembly required.