Interlocking Drainage Mat Tile Anti-Slip Surface Yes Drainage Hole Width 1 in Anti-Slip Backing Yes Number of Tiles 1 Washdown Safe Yes X-Ray Detectable No Width 18 in Welding Safe Yes Thermally Insulating Yes USDA Certified No Thickness 1 in Surface Texture Grit Surface Material Silicon Carbide Series Safe-Flex Floor System Surface Design Grit Number of Interlocking Sides 4 Reversible No