Rotator Disc.....our new generation of durable rotator discs are 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 to strengthen end-range of motion, improving joint support and stability and to identify strength imbalances between limbs.
The Balanced Body difference
Discs are not adjustable. Each Rotator Disc provides one resistance option. Sold as singles.