Jukusa (HOP BALL-1 Pcs.)” The Hop Ball Makes Play and Exercise Fun. Recommended For 2 Years to 5 year. Help Build Coordination Skills in Growing Up Children.” Made with Heavy Gauge Vinyl and a Reliable Grab Handle. Enjoy The Fun of Bouncing Indoors or Outdoors. Inflates Up To 17 Inches In Diameter. ” Requires a Foot Pump or Compressor (Included) to Inflate. Best Toys for Kids. Colors and Designs as per Availability. @ This jumping ball (bouncy hopper) is children's favorite playmate your little ones will learn balance and coordination while riding on the ball and having fun safe to play.” Bounce Features: stable space hopper, bouncy ball. Safe to use. it is delivered deflated. Age group 2 Years to 5 year.” Easy Inflation: take out the inserted white plug (air stopper) from the hole on the ball belly, insert the tip and inflate the hopper to good size, and then replace the white plug back into the hole quickly.” Recommended ages: 2 Years to 5 year.