4urFloor offers the Hobnail 18 in. x 18 in. self-stick carpet tiles. Each box contains 16 tiles- 36sqft. The tiles have been engineered for outdoor and indoor use. Made with 100% recycled PET bottles, the tiles are fade and stain resistant, the Hobnail Carpet tiles are an excellent product for residential use. Installation is easy with the peel and stick liner and the strong, pressure-sensitive adhesive backing adheres to most surfaces including low pile carpet. The tiles can be cut with a scissor and will not unravel or fray. Once installed, the tiles are easy to maintain.