China Wooden Coasters factory The main physical characteristics of wooden square coaster coaster are light, low density, elastic, airtight, impermeable, buoyancy, flexible, strong impermeability, moisture and anti-corrosion, not conductive, not easy to accident, and the whole wooden square coaster is safe and formaldehyde free. Hand can be used, the overall round without obvious edges and corners, effective heat insulation, safe protection of the table 聽China Wooden Coasters factory website:http://www.hezehuaxing.com/wooden-decoration/wooden-coasters/