Walk-N-Clean is the solution for laboratories, pharmaceutical and biotech industries requiring critical cleaning. Protects against the growth of bacteria, mold, and mildew. As a disinfectant solution, Walk-N-Clean will help prevent any contamination of your workspace. The mat frame/tray has a non-skid backing that is naturally antimicrobial, mold, and mildew resistant. The sticky sheet pad also contains an anti-microbial adhesive. Each tray comes with 60 sheets; and the replacement pads will be a case of 4 at 60 sheets each. FOB Shipping Point.