CMC Cryo Pneumatic Knee ROM Knee Extra Gel Pack Designed to aid in recovery for an injury or post-surgical care for the knee. Easy to use and allows a patient to be mobile throughout recovery. Cryo Knee Features: Removable cryotherapy gel pack Easy to use compression feature that helps manage pain and swelling. Removable range of motion hinges for additional stability support Condition: Very excellent condition. Appears to have never been used.