An Edu-Foam floating platform supports imaginative structures in pool or bath. Edu-Foam building blocks cling together when wet and include doors, wall, windows and more. Set includes: 14 blocks and 1 platform. Basic block size:1½"x1 ½" (4 x 4 cm). Platform Size: 9¾"x9¾"x½" (23 x 23 cm).