Each ball is nylon wound with a durable, tacky rubber cover. Please specify red, yellow, blue, green, orange or purple when ordering.; ; 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!