DuraGrid CR12BLAK Cross-Rib Design, Interlocking Modular Self-Draining Multi-Use Safety Floor Matting (12 Pack), Black Perfect accessory to add function, safety, and protection to your wet floor areas. Ideal for locker rooms, laundry rooms, showers, saunas, shelf liners, indoor pool areas, marine decking and more. Non-Slip and Slip Resistant. DuraGrid is great for many applications such as the shower floor or even marine decking. It can be laid directly over fiberglass, plywood, or boat carpet to prevent slipping. Simple setup without toxic fumes. DuraGrid tiles simply "snap" together to create any size, perfect for covering unsightly and cracked surfaces. No tools or glue required. DuraGrid Cross-Rib safety matting contains anti-bacterial and anti-fungus agents to fight mildew and mold creating a clean and sanitary floor. Easy to clean protective flooring. DuraGrid tiles can simply be sprayed down with a hose without hassle or worry. Made in the U.S.A.