ANDERSEN Happy Feet Heavy-Duty Nitrile Rubber Mats offer excellent static dissipative properties. Texture Surface—For dry or damp work areas. Grip Surface—Provides superior traction and scraping action in wet work areas. Polyurethane foam encapsulated within Nitrile rubber. Versatile anti-fatigue mats offer excellent static dissipative properties, are weldsafe, and promote safety in wet or dry areas. Highly resistant to chemicals, animal fats and petroleum products. Rubber backing grips floor, minimizing mat movement and maximizing safety. Beveled safety borders on all sides. NFSI certified to be slip resistant. 3/8" thick. Made in USA. NOTE: 3x5" linkable version is also available. Call for information.