Duragrid Indoor Outdoor Interlocking 12''X 12'' Deck and Patio Tiles, Pack of 30, Gray Self-draining modular tiles offer a cost effective solution to unsightly concrete and worn decks Patented self-draining design, Easy to clean, just hose off Easy DIY install, just 'snaps' together, no tools needed Low-maintenance modular design eliminates water problem areas Made in the USA. 10 Year Limited Warranty