6 months & up. Enhance building possibilities with this easy-to-clean, lightweight set of Jumbo Foam Colored Blocks. Children can strengthen their gross-motor skills while learning basic principles like patterning, stacking, and size relationships. Sized to be proportionate to traditional unit blocks, this set enhances block play and encourages young engineers to safely build and explore. A subdued color palette coordinates beautifully with other blocks in the block play area.