CanDo Soft Weight Set contains 6 balls that includes 1 each of 1-1/10 tan, 2-1/5 yellow, 3-3/10 red, 4-2/5 green, 5-1/2 blue, and 6-3/5 pound black balls. This set offers uniform grip making it easy to grip and is versatile. It is perfect for sensory input, upper and lower body strengthening, balance as well as stabilization exercises. It comes with an instruction manual. Measures 4-1/2 inches each.