The Portfolio Tile Collection, 2. 0mm Self-Adhesive Vinyl Floor Tiles are a beautiful and easy do-it-yourself flooring solution.   Quickly update any room in your home or office with durable, commercial gauge Portfolio Tiles.   No tools, messy glue or additional adhesives are needed for installation, simply peel and stick to any flat and dry subfloor; easy to cut with a utility knife, simply score and break; all installation instructions and recommendations are included.   5 year limited .   Nine square feet per box/Nine - 12inch x 12inch tiles per box.   Notice to California residents as required by Proposition 65: WARNING: This product contains and can expose one to DEHP a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www. P65Warnings. ca. gov/product.