Salvequick fabric plaster refills for a Salvequick Pliferproof Plaster Dispenser. The refills are locked into the dispenser to make sure they don't disappear. However, it is easy to remove the empty refills using a special key. The plasters and dispensers are efficiently and ingeniously designed so that when you pull a plaster out of the dispenser one side is uncovered, making it ready for immediate use. You can even remove and apply the plaster with one hand.