USED ONCE, CLEAN...SIZE 11-13, ADJUSTABLE, SPRING-LOADED. SPLIT-TOE HELPS LEATHER SHOES OR BOOTS KEEP THEIR SHAPE...IF YOU GET YOUR SHOES WET, THESE KEEP THEM TRUE TO SIZE. U.S.RED CEDAR ABSORBS ODORS AND LEAVES BEHIND A PLEASANT AROMA. THESE WILL LAST AND WORK FOR YEARS.