Designed to facilitate faster rehabilitation after an injury or operation involving the Achilles tendon, the Aircast Achilles Wedge comprises a series of four, 25mm sections that, together, make up a total height of 100mm (4 inches). All four sections may initially be used but they can be removed one by one as recovery progresses until the user is ready to resume a normal gait. made from neoprene, the Wedgesare well padded & very comfortable, & it will fit any walker with an enclosed heel. Four, individually removable 25mmm (1") sections Ideal for those recovering from an achilles tendon operation Made from well padded neoprene for comfort Allows a good degree of adjustment