Action Domes™ and add-on items are non-intimidating, sting-free, very light, gross motor skill developers for early grades. Action Domes™ include a locking center-hole pole support structure and four side holes for horizontal pole positioning. An optional Deluxe Action Dome™ includes a slip-resistant dipped rubber rims for safer step and stand-on balancing. Accessories include, six 30” dia. Hoops; six 6” or 12” Hurdles; six 24” H Arches; and six 38” H Posts. All these segments snap together, are interchangeable, and are the strongest blow-molded segmented pieces made for play! The Obstacle Kit makes all the shapes: snap-together sections that create six 34” hi-impact Poles/Wands; six 24” H Arches; six 30” diameter Hoops, or six 12” H Hurdles. Action Domes™ are 9” dia. x 4” H. Action Domes™ are great indoors or out, but add-ons items are best suited for indoor play. Domes sold separately in 12’s in COLORZ.