Interlocking Drainage Mat Tile Anti-Slip Surface Yes Drainage Hole Width 0.64 in Anti-Slip Backing Yes Number of Tiles 20 Washdown Safe Yes X-Ray Detectable No Width 12 in Welding Safe No Thermally Insulating No USDA Certified No Thickness 5/8 in Surface Texture Smooth Surface Material PVC Series F.I.T.(TM) Surface Design Smooth Number of Interlocking Sides 4 Resistance Properties Chemical-Resistant NSF/ANSI 52 No Non-Interlocking Edge Style Straight MVSS 302 Rating A Rating