Stormtrooper Custom Machine Washable Fabric & Non-slip Rubber Backing Indoor / Outdoor Doormat Floor Mat, 30(L) x 18(W) Inch Machine washable, indoors/outdoors mats Backed with a non-slip neoprene rubber mat Durable heat-resistant non-woven fabric top Dimension: 30"(L) x 18"(W) Stylish, great for all season