[ Correction & Protection ] Adjustable Heel Wedge Inserts can help relieve knee pain and foot discomfort caused by improper walking posture. These heel inserts are designed for individuals with bow legs, knee pain, foot alignment issues, osteoarthritis, knock knees, pronation, posture problems, and other conditions related to uneven foot alignment. [ Cupped Heel Support ] These supination and pronation heel wedge inserts are shaped to fit the natural curve of the heel and feature a scientifically measured slope. The medial and lateral heel insoles offer stable support, conform to the shape of your heel, and help reduce foot fatigue associated with elevated height. [ Adjustable Layers ] These orthopedic supination and pronation correction heel wedges can be used individually or stacked together, allowing you to customize the height and angle by adding layers. The top layer measures 0.45 inches and the additional layers measure 0.2 inches each. The height difference helps adjust the strength of internal rotators, encourages proper walking mechanics, and engages underused muscles to improve overall body alignment, leg function, and gait.