Our new generation of durable rotator discs is great for improving balance, alignment, core strength, joint stability and more. Now you also have the choice of staying traditional (no resistance), or working with spring resistance.
Three choices of spring resistance: light, heavy or none
All include built-in markers at 10 and 45 degree angles, for precise measurement of range of motion
Two disc sizes: 9" (23cm) and 12" (30cm)
Longer lasting, top-quality ABS construction. Maximum weight, 500 lbs. (277 kg)
Discs are not adjustable. Each provides one resistance option.