The OXO Steel Soap Dispensing Palm Brush Refills ensure that replacing the brush heads instead of throwing the whole apparatus away is always an option. This task can be performed by anyone in the household, including the children. Once the bristles on the brushes begin to bend and become worn, it is time to simply twist of the affixed head and put a new one on. This takes only seconds to do. After a couple of months of regular use, the bristles on these brushes will begin to breakdown. Old brushes can be kept for use in the bathroom to clean grouted areas. They can also be saved and used to pretreat stains on clothes or to clean muddy shoes after a day of hiking or playing outdoors.