21 inch by 83 inch EVA closed cell foam sheet Self-Adhesive glue backing included Cut groove design Grooves run the 83 inch length Other color and patterns available Hydro-Turf sheet measuring 21"x83" in cut groove pattern. These sheets come with self-Adhesive glue already on the back for an easy installation to whatever job you throw at it. The grooves run the length of the sheet and can be easily cut into any template you have for it, or used as a whole sheet on bass boat and other boat flooring. With the self adhesive backing already on the sheet installation is quick and easy. Fishing, boating, kayaks, jet ski's, trailers, garage and shop floors - the turf material is versatile for whatever task you assign it, if you want grip this is the product you are looking for.