The Vevor inflatable bumper balls 2-pack is designed for active outdoor fun for kids and teens. Made from 0.3 mm thick explosion-proof PVC, these bubble balls are built for durability, safety, and repeated play. The 3' diameter design includes integrated soft handles and adjustable shoulder straps for a more secure and comfortable fit. They are suitable for solo or group games in backyards, playgrounds, parks, and recreation areas. A repair kit is included to help extend product use over time.