super33Scotch® Super 33+™ Professional Grade Vinyl Electrical Tape is a black, 7 mil (0.18 mm) tape, on a 1 in (25.4 mm) core, combines the flexibility of a PVC backing with excellent electrical insulating properties to provide primaryFor trusted quality that stands the test of time, the pro choice is Scotch® Super 33+TM Vinyl Electrical Tape. Long-lasting with superior adhesion and handling in a wide range