Green Electrical Tape 3/4" x 66 ft Roll 7 mil (100 Roll/Case) Is a Plasticized PVC film with an aggressive rubber resin adhesive in OSHA colors for cable coding, quick identification of electrical phases, circuits, feeders and branches. Flame retardant. Individually cello-wrapped and labeled. 1-1/2" (38.1mm) UL/CSA listed core.