Extra shock absorbers for your body -- for athletes and heavy heel strikers! Basketball, running, golf, tennis, roller blading, hiking -- whatever you do, Tuli's Pro Heel Cups will cushion your heel strike. Instantly relieves painful heel conditions, sore, tired, burning or aching feet, painful legs and knees, arthritic joints and shin splints, painful nagging backaches and neckaches and painful feet and legs due to overweight or pregnancy. Invented by a leading foot doctor and used by millions. Lifetime warranty.