Specs: Dust Free White Material PVC Fiberglass Free Resistant To Abrasion Class A Flame and Smoke Imapact Damage Resistant Replaces Standard Grid Ceiling Tiles Ships (normally) in 2-3 days Resistant to Mold, Mildew and Bacteria Resistant Moisture, Oils, Most Chemicals   Spec Sheet #1 - Spec Sheet #2   LOW MAINTENANCE Clean using any household cleaner. Spray detergent onto clean rag and wipe. PVC Tile is unaffected by most corrosive chemicals, but avoid using solvents or lacquer thinner. Do not use abrasive cleansers to scrub. INSTALLATION INFORMATION Use skill saw to cut to size and place Waterproof Ceiling Tiles into PVC or aluminum grid system. To cut holes, use hole saw. Waterproof Ceiling Tiles are nominally sized 2'x2', but can also be trimmed using utility knife.