Switchboard Mat Antifatigue Material Yes ASTM D178 Type/Class Type II Class 2 ATSM Dielectric Test Voltage 30 000 V Backing Material Closed Cell PVC Foam Border Color Yellow Color Black Edge Style Straight Indoor/Outdoor Indoor Maximum Voltage 17 000 V Overall Length 75 ft Overall Width 3 ft Series 837 Stripe Pattern Straight Stripes Surface Design Ribbed Surface Material Vinyl