Advantaged Triangle Design The Triangle Design grippers for area rugs and hardwood floors will maximum increase the contact surface. The strong adhesion will help stick firmly and keep your area rugs in place. Moreover, the rug stickers for wood floors will prevent the rug corners and edges curling and always keep your rugs steady and safe. Thin and Hidden The rug tape for area rugs on hardwood floor is as thin as 0.07 inch only. They are easily hidden and will not affect the flat appearance of your area rugs. Washable and Reusable The grippers for rugs are easily removed and no residues will be left. You can wipe the grippers with clean water or soapy water if needed. Well, cleaning with rubbing alcohol could help achieve better effectiveness to resume the adhesion. Note: If the backing of your rugs has fluff or fiber, it is not suggested to remove the grippers from your area rugs to wash. Just clean or wash the grippers on the rug. Wide Application The grippers for rugs works well on hardwood floors, tiles floors, concrete floors as well as marble floors. NOTE: 1. It is not recommended to use on the area rug with FLUFF backing, as the grippers are very sticky and may remove the fluff. 2. It is not recommended to use on the area rug with JUTE or RUBBER backing, as the grippers may not stick to these materials.