The NoTrax Diamond Sof-Tred Rug - Gray is designed to reduce fatigue while working at a machine or workstation. Use the NoTrax Diamond Sof-Tred Rug - Gray at front or side entries to keep dirt out of the lobby. At 0.5 inches thick, this rug is made of PVC closed-cell foam and designed to reduce fatigue. All four sides of the mat are beveled to prevent trip hazards. The textured face of the mat contributes to its superior tensile strength and tear-resistance. Available in a variety of sizes, this rug is intended for commercial use.