This Neo G Stabilised Open Knee Support with heat therapy utilises unique metal spiral stays which fully stabilise the knee whilst still allowing controlled movement.Heat therapeutic neoprene helps circulation, beneficial in the relief of arthritic pain or chronic aches and stiffness. The Neo G Stabilised Open Knee Support has been specially designed for the treatment of patella tracking dysfunction, strains and sprains, instability, meniscus injuries, arthritic pain. The adjustable straps allow variable compression and ensure a custom fit around the entire knee complex for maximum user comfort. Fits up to 56cm (22 inches). Measure thigh circumference 4 Inches above knee for maximum size.