Birkova Products' Leg Support collection contains a wide range of products: New Yellowfins, Remanufactured Yellowfins, Altima Leg System, Stress Posts, Knee Stabilizers, and more. All of the remanufactured boots and Yellofins go under total tear down; surfaces are refinished, polished, and all the wearing parts are replaced or repaired. Replacement pads are available in the pads section.