Rustic Thick Cut Western Lodgepole Wood Slice Coasters - Set of 4 These coaters are made from beautiful Western Lodgepole wood and are cut between 1/2" and 5/8" thick. Each coaster has been given 3 coats of Polyurethane floor finish for an extra strong bonding that will not peal when the surface becomes wet or from prolonged periods of use. Each coaster has a diameter of between 3-1/2" - 4" and has rubber bumpers adhered to the bottom to protect the surface of furniture it comes in contact with. These coasters are made thicker and heavier than typical coasters so that when a moist glass is lifted from them, they will resist being lifted up with the glass from the surface of the table.