X-Large Montessori Ball Pit Soft Play Set | Ball Pool with Floor Mat & Option of Steps & Slide | 3m+Little Helpers Ball Pool is made of a firm polyethylene foam with raised sides so keeps baby contained and safer. Ideal for indoor and outdoor play. Our ball pit sets can be used from an early age. The pools can be used as playpens from an early age, where babies can stay safely and start learning their first skills: rolling, crawling, grasping objects, orientating themselves in space, and more. All of this happens in a baby safe environment! As the