A rectangle, a slide, a step and a sector combine into a soft obstacle course that a toddler can rebuild as often as they like. A 2.5" detachable hook and a 1" sewn-in loop join the pieces during play and release cleanly afterwards. High-density EPE foam under a PU cover gives the cushioning that makes early climbing and crawling safe, and the cover wipes clean. Blocks measure 18" square, with the sector at 2" thick and the others 10" high. ASTM and CPSIA compliant.