10" Playground Balls Set with Pump (Set of 6)Note: The set includes six 10" deflated playground balls, an air pump with a flexible extension hose, and three needles Playground Ball Material: Made from strong, tear resistant polyvinyl; it will not tear or pop, leakproof and waterproof; no matter what the weather is, it will remain in the best condition and will not leak; all products are exhaustively and independently tested by a third party lab; our engineering learning set is certified non