Building and numbers add up to big fun with 1-2-3 Count by Mega Bloks First Builders! Now your little one can learn to count to 10 when they start building with 20 award-winning First Builders blocks that you can decorate with the numbers 0 through 9, as well as special pictograms that make it easy to count! Use the brightly colored blocks and special shapes to make tall towers, rows of numbers, or anything else you can imagine. When the counting is over, cleanup is as easy as 1-2-3 with the convenient storage bag! Contains 20 pieces. Ages 1 to 5.