The Kraiburg Interlocking Mat (1700 X 1100) is ideal for flushed or hand sprayed areas because the bottom does not dam water and works well with alley scrapers. It has an ultra-grip surface, quality rubber that will not curl, pre-cast mounting points and interlocking joints that provide a secure fit. It also has raised pegs on the underside with a 1in overall thickness. It is ideal for use in any area except those cleaned by skid loader or tractor.