Inflates with included pump. It just takes a little time. My 4 year old loves this ball. I bought purple and blue. Purple doesn't puff up as much as blue. They are both a little big for a 4 year old but still enjoy playing with them.
Get Your Kids Hopping With WALIKI'S Green Hopper Ball For Ages 3-6 Therapy And Fun!
37 Review
Geospace Jumparoo Boing! Pogo Stick (60-100 Lbs, Ages 8 & Up, Medium Size), Assorted Colors
36 Review
Jump Into Fun With The AppleRound Space Hopper Ball: 28In/70Cm Diameter For Ages 13 And Up
36 Review
WALIKI Hippity Hop Therapy Ball For Kids - Blue, Ages 7-9 (20"/50CM)
46 Review