Four cushioned walls filled with 25D sponge form a round climber ball pit that lets children aged 3 and up play while staying supported as they sit, reach and move. The stylish PU cover zips smoothly, so adults can remove and wash it to keep the play area cleaner. A 3.5-in thickened sidewall resists deforming when kids climb over the edge, and the 41.5 x 9.5 in overall size supplies room for ball play without dominating a room. The set includes 200 vibrant PE ocean spheres and a mesh storage bag that keeps them gathered when playtime ends.