121 Pieces of Life Sized Building Blocks for Children, Now Featuring Roofs 121 Life Sized Pieces Includes 65 Small Squares, 25 Medium Rectangles, 23 Large Rectangles and 8 Small Roofs Life Sized Plastic Building Blocks: These huge building blocks provide a life sized outlet for creativity and expression for young children on top of eliminating the choking hazard of smaller building blocks. Bond with Your Children by Teaching Them: All psychological studies show that young children will have the most value and the most respect and love for parents who can guide them to success and by working with your children to flex there creativity with these blocks you will be teaching them and bonding simultaneously. Created by 2 Columbia Graduated PHD's Who are Married: MassBricks were developed by a married couple who both hold PHDs from Ivy League Columbia University, who were seeking a way of effectively bonding with their daughter while at the same time giving her a chance to express herself and develop herself.