Certified antimicrobial rubber mats designed for heavy wear and tear in almost any environment featuring the same great features as the Knobby Mat. Knobby surface on both sides allows circulation of air or liquid. Protects stainless steel parts or glassware from knocking against hard surfaces. Manufactured from FDA approved material. Features 3/4" reinforced holes die-cut in 2 corners for easy hanging and a single triangular hole on the bottom end to indicate the mat being antimicrobial. Black "X" on one side helps prevent cross-contamination. Use the solid colored side for product contact and the side with the "X" as the bottom side.