Miraclekoo Square Bamboo Coaster Decor Wooden Tea Cup Heat Insulation Trivet Mat Set 3.3 Inch,5 Piece 2.4 Inch bamboo coasters,3.3inchtotally) Natural bEco-friendly - using fast growing bamboo products conserves hardwood forests Environmental technology refined,classic style Healthy, close to nature; simple, subtle elegance It is also a rapidly renewable material