L.H. Dottie CU10 Copper Plumber Tape, 3/4-Inch Width by 10-Feet Length Solid copper Plumber tape is 3/4-inch wide and is perforated with alternating size holes to accommodate nails or bolts It is used to strap or support pipe, ducts and other fastening applications Copper strap also used for grounding 0.58 lb. weight