Using 100% cotton and monks cloth, these are punch needled these unique mug rugs, the perfect coffee coaster, candle mats, small plant mats and more!! Very cool looking while protecting your surfaces. These are backed with cork so they will not slip around. Perfect for tables, computer desks, work desks, coffee tables and more. Other info: - approx 4 round - cork backing - hand wash with mild detergent - air dry