Product 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 (8 pieces) and 180 * 30mm (8 pieces). Both are 2mm thick and are suitable for most types and shapes of carpets. Ideal for indoor and outdoor use. 2. Easy installation and removal - One side with adhesive is applied to the carpet and the other side to the floor. To remove or clean, gently lift from the floor surface. 3. Washable and reusable - Non-slip carpet cushions are made of high-quality reusable PU gel with no odor. If dirty, wash with soap and water and allow to air dry. Leaves no residue on floors. 4. Safe for floors - Made of soft PU material that does not damage flooring. Adhesive 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 adhesion weakens due to dust, clean with water and allow to dry to restore stickiness.