The ball set includes 1 playground ball and 1 air pump. The ball has an 8.5 diameter and 250 grams weight, featuring textured no-slip grip. Ball color is bright and vibrant. The ball is inflatable and delivered deflated. One air pump in included in the package for handy inflation. The ball is made from heavy composition PVC. Lab tested, the ball fully conforms to the toy safety requirements, durable and safe. It is NOT a foam ball and comes without foam layer/padding. The ball is perfect for dodgeball, foursquare and other playground games, ideal for during recess play and other group activities inside and outside, improving metal agility, manual dexterity and motor coordination. Easy Inflation and Deflation: Inserts the needle with the pump into the air hole for inflation; Insert the needle only without the barrel of the pump for deflation. No additional plug is needed to seal the air hole. Companion pump is NOT a toy, and for adult use only.