Cardboard Blocks Set

Young construction workers and architects will spend hours with these lightweight yet durable cardboard building blocks. This 40-piece set features three sizes of "bricks" for constructive imaginative play. Small measure 6x3x3"; medium measure 6x6x3"; and large measure 12x6x3". Made of premium, extra-thick cardboard for strength, they are easy to assemble and feature a smooth surface for easy cleaning and sanitizing. The large blocks hold up to 150 lbs.! Assorted colors. For ages 2 and up.