Material: PU Size: 135 * 25mm, 180 * 30mm Thickness: 2mm Style 1: 8 pieces 130mm * 25mm * 2mm (white), 8 pieces 180mm * 30mm * 2mm (black) Style 2: 8 pieces 130mm * 25mm * 2mm (black), 8 pieces 180mm * 30mm * 2mm (white) Package includes 16 pieces of non-slip solid patch for trapezoidal carpet 1. Select 2 sizes - Carpet stoppers have two different sizes: 130 * 25mm * 8PCS & 180 * 30mm * 8PCS. Both are 2mm thick and are suitable for almost all types and shapes of carpets. Perfect for indoor and outdoor use. 2. Easy installation and removal - One side of the paper protective film is glued to the carpet. The other side is glued to the floor. If you want to remove or clean it, simply lift it slowly from the floor. 3. Washable and Reusable - Non-slip carpet cushions are made of high-quality reusable PU gel with no odor. If dirty, wash the carpet grippers with soap and water and let them air dry. Leaves no residue on floors. 4. Harmless to the floor - Carpet grippers are made of soft PU material that does not damage the floor. The adhesive surface leaves no residue when removed and works well on hard floors including tile, ceramic, hardwood, and laminate. 5. High-quality materials - Carpet grippers are made of PU elastomer, resistant to high temperatures, environmentally friendly, non-deforming, and easy to restore. If the adhesive performance weakens due to dust, clean with water and it will regain stickiness after drying.