Size:3/4 Inch x 66 Feet (Single Roll - Auto) | Color:Black Product Description 3/4" x 66' Black Professional Electrical Tape, Weather Resistant, Flame Retardant. From the Manufacturer Duck brand Pro Series electrical tape is UL and CSA approved with excellent stretch, adhesion and conformability properties for both indoor and outdoor applications. The 7-mil black vinyl tape performs well up to 600-Volt and temperatures between 0 and 176-Degree Fahrenheit. The tape resists abrasion, moisture, solvents and is flame retardant. It is designed for both home and professional electrical and splicing applications. 3/4-Inch by 66-Feet roll