BathBlocks Floating Ball Run & Waterfall set lets kids build different waterfalls and ball runs in every bath.                                             
  
 Bath Blocks bring classic, educational block play into a fun, new watery environment  
  
 The bath tub is the perfect place to create waterfalls, ball runs and more  
  
 The "sticky" viscosity of water (plus soap suds or shampoo suds) creates a cling between blocks and smooth, polished wall surfaces  
  
 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  
  
 No holes plus non-absorbent foam reduces grime build-up, cleans easily with mild soap, and dries quickly.  
  
 Building Blocks based on 35mm x 35mm x 35mm (1.25"x1.25"x1.25") unit block.