TheraBand Soft Weights are a great alternative to traditional dumbbells or other weighted workout balls. These balls vary in weight while maintaining the same 4.5" diameter to ensure grip is not inhibited during progression. The soft, easy to grip shell makes isometric workouts and other physical therapy exercise simple and fun. Great for overhead exercise, as they are less likely to cause injury when dropped. Uses: Shoulder strengthening and rehabilitation. Features: 6 colour-coded weights range from 1.1 to 6.6 pounds (0.5 to 3 kg) Individually Packed, Safety and Use Instructions Included With Soft Weights