RDX Super tight extreme rubber strand knee wraps design for the ultimate rebound preferred by heavy lifters and offer superior support compared to any wrap on the market. Made of heavy duty elastic, 78" long. 3" wide and tucks in the back for easy on and off. Designed to grip the skin which eliminates the need for chalking the knees to keep them in place and doesn't slip around on itself as is known of other wraps, Gets tighter, easier, during the movement even when not wrapped to total tightness generates the most energy and power of any wrap in the world. RDX wraps are exceptional in quality and construction with a unique fastening system allowing your complete attention to remain focused on your leg workout. One size fit all Sold in pairs.