This is a rigid foot support to control adduction and abduction of the forefoot. Helps to maintain proper positioning below the knee and controls for extension. The supplied straps have slip on 7mm neoprene (latex free) pads. Molded Shoe Holders are designed for strength and durability. The sides are parallel to hold shoes, and the rear heel relief helps high tone individuals. The ankle strap slots are angled for a comfortable fit. Comes with padded straps pre-attached, and hardware to attach them to footplates. The mounting holes are 1.5″ on center.