?100% Premium Cotton Cover? 100% cotton fabric provides ultra-soft, breathable protection that's gentle on baby's sensitive skin - completely free from harmful. ?Self-Rebounding Memory Foam? Features 2-inch thick, high-density foam that arrives vacuum-packed (ships flat!) and automatically expands to its full round shape within 72 hours - maintains perfect form through years of play. ?Private Play Oasis? 36.5" circular design creates the perfect personal play space for toddlers, with tall 13.2" walls that keep balls contained while allowing easy parent supervision. ?Convenient & Hygienic? Includes removable, machine-washable cotton cover + foldable design with carrying bag for easy storage and portability between indoor/outdoor use. ?Complete Play Set? Comes with colorful balls and ships in compact vacuum-sealed packaging - simply unbox, unfold, and watch your new ball pit take shape!