This mat has a tough static dissipative textured surface for dry or wet workstations. Earth Friendly, 100% Nitrile rubber contains 20% recycled Nitrile rubber. Dense rubber cushion construction encapsulated with solid nitrile rubber resists heel damage and protects cushion from exposure to oil, grease, chemicals, etc. Grippers on the back minimize movement. Welding safe, grease proof. Low profile borders will not curl or crack. All Happy Feet mats are certified slip resistant by the National Floor Safety Institute. Black finish with Red border. 1/2" Thick. Approximately 36"L x 24"W overall.