The Andersen Company No. 3370 Cushion Station Linkable Middle Anti-Fatigue Mat is static-dissipative and has a highly durable and dense, closed-cell nitrile rubber cushion with a unique design for excellent anti-fatigue properties. This mat features knobs on the bottom to increase comfort and allow moisture to quickly drain. It also has an anti-microbial agent incorporated into its rubber compound. This agent passes the NSF ASTM G21-96 test for determining resistance to microorganisms. The Cushion Station mat is certified slip-resistant by the National Floor Safety Institute and is recommended for a variety of industrial environments because it is welding safe and grease, animal fat, citrus, fish, and vegetable-oil proof.