curtis wagner plastics corp.-400 cork plant mat (4" diameter, cork, 5-pack) - round cork plant coasters - use as planter, coaster or pads for your arts & crafts projects curtis wagner plastics corp. available in a range of diameters and shapes, our plant surface protector can be used as barriers between planters and pots and the floor or furnishings below them. cork pot pads are natural non-slip material that resists stains and can absorb some moisture thanks to its porous surface. when combined with curtis wagner plastics extensive lineup of heavy-gauge plastic mat, plant pot saucers these cork coasters for plants board can provide near-perfect protection against water damage to hardwood floors, carpeting, linoleum tiles, and furniture finishes. they can also eliminate the risk of scratches and marks to these interior surfaces. outside, eco-friendly cork plant mats can provide added stability for planters, allowing the most precise placement of various elements of the garden design.