These cup coasters are made of stone, sturdy and for long-term service. They are heat and slid resistant, you can place glass cups, tea cups, coffee cups on them safely. They can perfectly protect your table from damage. The simple but classic coaster is the perfect decoration of your kitchen, living room, and dining room. Features - Color: Black - Material: - Size: 10.00X10.00X0.50cm/ 3.93X3.93X0.20inch. - The coasters are made of material, preventing liquids from leaving any stains or water stains on the surface. - The coasters have a hard, scratch-resistant surface, very easy to clean, time and labour-saving. - The black coasters with natural pattern and texture make them unique yet equally beautiful. - The solid black can be used not only as a coaster, but also for painting, writing, photographic props, decorations, home decor and more. - They are great present families for friends for Birthdays, Mothers or Fathers Day, Valentine's Day, Wedding Anniversary, House Warming or Christmas. Package list: 2 stone coasters