Use indoors and out. Made from a fast-drying resilient PVC compound specially formulated for mold and mildew prevention. Low profile Aquamat Tiles provide a fast draining, sure-grip surface. Protects boat decks, storage lockers, floors and vehicles from damage caused by impact with hard or heavy impacts. Ideal as a fatigue relief in work areas. Perfect around swimming pools and marinas where slippery surfaces may be a liability.