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 come in two different sizes: 130 * 25mm (8 pieces) and 180 * 30mm (8 pieces). Both are 2mm thick and 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, the other side adheres to the floor. To remove or clean, simply lift it slowly 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 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 surfaces including tile, ceramic, hardwood, and laminate. 5. High-quality materials - Made of PU elastomer with high temperature resistance, environmentally friendly, no deformation, and easy to restore. If adhesion weakens due to dust, rinse with clean water and allow to dry completely to restore stickiness.