ANTIFATIGUE MAT, ANTI-SLIP BACKING YES, NUMBER OF BORDER STRIPES 0, RESISTANCE PROPERTIES DYNA-SHIELD(R), INSULATION, TEAR RESISTANT, WEAR RESISTANT, X-RAY DETECTABLE NO, WIDTH 3 FT, USDA CERTIFIED NO, WELDING SAFE NO, WASHDOWN SAFE NO, SERIES 415 PEBBLE STEP SOF-TRED(TM) WITH DYNA-SHIELD(R), THICKNESS 5/8 IN, THERMALLY INSULATING YES, SURFACE MATERIAL CLOSED CELL PVC FOAM, SURFACE TEXTURE RAISED PATTERN, NSF/ANSI 52 NO, REVERSIBLE NO, SURFACE DE