Stabilised Open Knee SupportHelps with strains, sprains, instability and patellar tracking in the knee Supports and stabilize injured, weak or arthritic knees during occupational and sporting activities Interchangeable metal spiral stays on either side help provide flexible support and the open patella design and stitched buttress help give reinforced support to the patella The product is a Universal Size (one size fits most), provides adjustable support, fits the Left or Right