Description Features 1. You need a coaster! Waterproof, insulated, and most importantly, it can effectively protect things on the mat. 2. Its very cheap! This is a set of 12! It also comes with a beautiful metal bracket for storage! You can enjoy it directly at the dining table. 3. Made of silicone, non slip, environmentally friendly, high-temperature resistant, odorless, with a diameter of 4 inches (10 centimeters) and a thickness of 0.2 inches (0.3 centimeters). 4. Black coasters are suitable for various occasions, such as offices, living rooms, bedrooms, restaurants, cafes, classrooms, etc. A smooth workbench can effectively prevent items from slipping and being damaged. Simply rinse with water and let it dry naturally in a well ventilated area for repeated cleaning and use. Specification Material: Silica gel Color: Black Size: 11.6 x 11.6 x 6 cm Weight: 310 g Package Include: 12x Coaster