Trim Tack Floor Mats prevent contamination and particulate matter from entering controlled working environments. These mats are used extensively in medical, computer, pharmaceutical, electronics and the graphics industry. Features: 100% non-skid adhesive backing secures mat placement. No frames required. Allows smooth cart passage. The different layers are identified by alternating white and blue tabs. Anti-microbial agent is incorporated in all adhesives. Great for clean rooms, screen making, plate making areas, and press areas where cleanliness is important.