Components There are 4 pieces of carpet grippers in one pack. The 3.9*3.9 inch (10cm*10cm) square design fits the corner of the carpet better, has strong adsorption force, does not take any unnecessary room and does not damage the floor. Suction and Grip Technology for Zero MarksThe unique suction technology ensures a firm grip on the contact floor and an easy-to-peel-off feature without causing traces or damage to the contact floor. There are many tiny air holes on the side surface facing the floor. After pressing hard, the air escapes outward, forming a vacuum negative pressure state in the air holes to produce an adhesive effect, keeping the carpet in place. Reusable & Removable Easy to install, be sure to tear off the yellow protective paper and transparent protective paper, after sticking the sticky side to the carpet, press the carpet firmly on the clean and smooth floor. 2mm thickness, invisible after installation. Thanks to the vacuum technology, you can easily peel it off the floor when needed, leaving no residue on carpets and floors. Easy to clean and can be washed together with the carpet, and then dried to restore the stickiness. Wide Application Can be used on various smooth surfaces and floors: laminate floors, wood floors, ceramic tiles, marble and other smooth surfaces, making your bathroom, kitchen, entrance more comfortable and safe. (This product is not recommended for carpeted floors)