NoTrax® 549S3864YB Safety Stance® Anti-Fatigue Floor Mat, 64 in L x 38 in W x 7/8 in THK, Nitrile Rubber, Drainage Hole Surface Pattern, Resists: Abrasion, Chemicals, Grease and Oils NoTrax® 549S3864YB Safety Stance® Anti-Fatigue Floor Mat, 64 in L x 38 in W x 7/8 in THK, Nitrile Rubber, Drainage Hole Surface Pattern, Resists: Abrasion, Chemicals, Grease and Oils