Made from recycled rubber tires, envirotile is an environmentally-friendly product that is the ideal re-surfacing solution to renew, restore and resurface many outdoor and indoor flooring spaces. Resurface old, worn, cracked floors in a snap. Designed to look like concrete pavers but has the ease of a Do-It-Yourself application - no contractor required! Lightweight and portable, you can place envirotile directly on top of any existing flat surface; i.e. wood, concrete, patio tiles. envirotile will not warp, crack, peel, ship or crumble. If you want to secure the tiles together, Connector Clips are sold separately.