Thera Band Stability Trainers are oval-shaped, color-coded pads, supplied in three densities to provide a progressive system of balance training for rehab, post-rehab conditioning, and fitness applications. Green (firm) and blue (soft) pads are molded in closed-cell foam with a ridged surface. The black (X-Soft) pad is inflated with air and has rounded points that provide tactile stimulation on one side. By combining the different pads, patients can improve balance and proprioceptive skills by progressing through levels.

The Blue Pad measures 16'' x 9'' x 2'' on the top, and 17'' x 10'' x 2'' on the bottom.
The Green Pad measures 14.5'' x 8'' x 1.75'' on the top, and 15'' x 8.75'' x 1.75'' on the bottom.
The Black Pad measures 17.25'' x 10.125'' x 2.5'' on the top and bottom.