Our most popular 8-1/2" playground ball, constructed of durable 2-ply pebble-textured rubber with a butyl rubber bladder. Set of 6 rubber balls, one each of our bright Spectrum colors. Balls arrive deflated.; ; Don"t pay a lot and still bring your "A" Game.; That"s the Spectrum Difference.; ; Spectrum products deliver superior quality at a price that"s easy on your wallet. Tough enough for regular use in the gym or on the playground, great for training, perfect for introducing kids to sports and What a Selection! ; ; Get Spectrum and Get Playing!