Build kids" imaginations one Block at a time! Micro Bloks are compatible with all other same-size construction bricks. 750 pieces allow children to build almost anything! Construction bricks are primary colors and the set features an idea sheet with lots of fun building ideas. Helps children identify shapes and colors. Bloks come in a reusable plastic tub with lid for easy storage. Tub measures 16" x 11-1/4" x 8". Ages: 3 and up.