(Prevents Boots from Deforming Out) Designed to keep the Boots in shape. Pair perfectly with short boots, long boots and riding boots. This item will keep your boots in shape. Keeps Boots Clean: Unlike sneakers, these boots are long and may cause mold and mildew. Boot keepers allow moisture to escape and stay clean. Wide range of uses: Easy to install by simply holding the handle and inserting it into your boots. Release of the hand and the spring springs inside the boot, so you can use it comfortably without any difficult operation.