NoTrax T15 Heavy Duty Nitrile Rubber Optimat Safety/Anti-Fatigue Mat, for Wet or Greasy Areas, 3' Width x 3' Length x 1/2" Thickness, Brown Kitchen drainage mat with microstop anti-microbial NSF certified, 2 year limited warranty 100 percent nitrile rubber red compounds for varying degrees of grease and oil resistance Tested and certified by the national sanitation foundation (NSF) for grease and oil protection and durability Lightweight design for easy handling and cleaning