Bop on over to our GBOP (Great Big Outdoor Playball) and have great big outdoor fun. We've cast it in translucent green and blue earth hues, so when you're inside it, you get a totally cool view of the world.Roll it, race it, run with it - GBOP's a great big opportunity for one or a group of kids to create hours of active fun outdoors. Use our Electric Pump to easily inflate and deflate. Adult supervision required. For ages 6 and up. Size GBOP Ball is 52"-diam.