Bathblocks 21 pc Floating Castle Set lets children build floating castles, towers, bridges and more in the bath. The Prince, Princess, Knight, Dragon, Hound and Floating Throne add creative play to every bath. Sometimes the most educational toys are the simplest toys-- toys with lots of open-ended possibilities that encourage young minds to think, to create and to explore. The best of these toys provide progressive layers of challenge for children to discover as they grow. At their very best, these toys encourage exploration, reward discovery and empower our children.BathBlocks bring classic block play into a fun, fascinating, new, watery environment. The bath tub is the perfect place to create water falls, ball runs, water runs and more. The "sticky" viscosity of water creates a helpful cling between blocks, and the movement, buoyancy and flow of water add an engaging twist to classic block play.BathBlocks empower children to create their vision as they experiment with geometry, addition, subtraction, multiplication, division, balance, structure and cause-effect. Age: 3- 99 due to small parts.