JUMBO BLOCKS Building Set - Starter Pack 24 Pieces 7-1/2" X 3-3/4" X 4" HIGH High Quality ABS Plastic Construction for Years of Enjoyment! These brightly colored interlocking blocks are durable and easy to clean! The perfect gift for children of any age! A great activity to promote motor functions and use your imagination! Jumbo Blocks are also available in 48 Piece sets and 96 Piece sets to grow your collection!