Great for leg length inequalities, heel spurs and other clinical conditions helping to level the feet and hips. Helps restore normal contour, muscle tone and systemic function. Leather surface and beveled edge that keep lift in place without the use of messy glues and sticky tape. Can be used with sport shoes and dress shoes. High quality surface is treated to protect against UV, mildew and fungus. Rubber base helps prevent slipping inside shoes and absorbs impact to help reduce stress on the body.