Gardner Bender GCC-220 3/4-Inch Plastic Conduit Strap, 20-Pack Enables secure fastening of plastic electrical conduit, schedule 40 PVC, copper tubing, etc Resists deterioration from UV rays and breakage from extreme cold Heavy duty polyethylene Secures up to 3/4 Inch (19mm) diameter conduit, pipe, tube, or bundle 20 per bag Diameter size is 1.05"