Engineered with durable polypropylene material on the interior and exterior, the A&R(R) TuffTerrys(TM) Skate Guards help maintain and protect your skates' blades from moisture and abrasions to ensure consistent performance every time you glide onto the ice. Preserve and Protect WickAway Liner absorbs moisture from melted ice to prevent potential rusting Heavy-duty polypropylene reinforces protection to minimize blade damage off the ice Additional Details Accommodates hockey and figure skate sizes 7+ and 6+ respectively