HOG HEAVEN MARBLE TOP Anti-Fatigue Indoor Mat has a closed cell nitrile rubber cushion that provides long lasting comfort. The PVC/Nitrile rubber top ensures long life. Its anti-static smooth diamond patterned rubber top allows workers to pivot freely with a easy to clean surface. The floor mat's cushion is not glued on but is permanently molded to rubber to eliminate the possibility of delamination and borders will not crack or curl. Recommended for industrial, commercial, retail, hospitality, and health care applications Manufactured by M + A Mats, formerly known as Andersen Mat.