(The 2-Pack, LARGE size Tommy Kono Knee Bands will fit for people weighing over 250 lbs or who have especially sizeable knees.) Your knees are critical for stability and strength in all movements. So if you put your knees out of action, you're out of action. T. K. Knee Bands provides full flexibility to your knee joints, conditioning them to be strong and stable. Use them for injury prevention against repetitive and vigorous knee activities like leg squats and powerlifting movements. T. K. Knee Bands increase blood circulation to your knees to enhance your movements. Remove them after training and your knees will be sweating! T. K. Knee Bands were designed by weightlifter Tommy Kono, winner of world records. A two-time Gold Medal Olympic winner, and two-time winner of Mr. Universe, he designed them for himself after suffering 4 years of knee pain. For over 30 years, T.K. Knee bands have been time tested by the greatest. . . . champion weightlifters like Bob Bednarski, Tony Harris, Jesse Marundo and Kenny Dinolfo.