Description: Hopper Balls are a fun way to get kids active and exercising and are durable enough to use inside or outside. Kids love the fun, colorful graphics. The durable vinyl material stays inflated and bouncy while kids hop and bounce almost anywhere. The textured, rugged handle provides a secure grip. Encourages healthy, screen-free fun. The 15-inch diameter is sized for average sized children aged 4+. The Hedstrom Hopper Ball ships deflated but quickly and easily inflates with any hand pump or electric pump (not included). Also easily deflates for storage or travel.