1. New material, vacuum technology. These rug grippers can be easily stuck under any rug. The carpet tape provides extra walking comfort thanks to the slight elasticity of vacuum technology. 2. Easy to install and remove, no residue or glue. Peel off the backing sticker and stick the rug gripper to the rug, then press the rug gripper firmly onto the floor. The unique vacuum technology allows it to be easily removed from the floor when needed without damaging your floor. 3. 10cm * 10cm, 4 pieces per pack. The thickness of the rug anti-curling gripper is less than 1/10 inch, is not obvious after installation and does not affect the beauty of your rug. Wide range of applications, use them on rugs in living rooms, bedrooms, etc. You can also use them outdoors to prevent slipping and curling. Not suitable for rugs on carpeted floors. 4. Washable and reusable. These rug grippers are easy to clean and can be machine washed with the rug without compromising its grip. Once dry, they can be reused.