Aluminum foil foil foil green 31 balloon shaped balloon this tractor has a self-closing valve. Can be filled with air, so it can be fixed to the wall or can be filled with floating helium. This ball will be flat and not inflated with air or helium, must inflate the ball by yourself. This ball measures 31 inches throughout. This fantastic ball would be ideal as a gift for any tractor lover, or could be used as a wonderful decoration theme for your kid’s evening or birthday party.