It has so many uses, and easily adjusts to your current level of fitness. Want to improve balance? Strengthen and tone core muscles? The balance disc can be used standing, kneeling or sitting to work on core stability. Made from super durable and affordable injection-molded plastic. Large 16"-diameter balance disc is for all sizes and holds up to 225 lbs. 2-1/2"H. Move feet closer together for a tougher challenge, stand with one foot in the center for maximum difficulty. S; ; 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!