Mueller Jumper's Knee Strap, 1 pc, Fitness Equipment unisex, Do you have strained muscles or have you injured yourself and don't want the pain to limit you significantly? This product MuellerJumper's Knee Strap will immobilise the affected area and allow you to go about your daily activities. Characteristics: helps relieve pain adjusts to the anatomy of your body fixation without restriction of movement adjustable in size thanks to Velcro reduces muscle strain and tension