The 3M Scotch brown pvc insulating tape is sold 100 rolls per case and is another quality product from 3M. This sku is made of pvc for performance and durability. Has a dielectric strength of 7875 v. Provides a tensile strength of 17 lb/in to provide the holding power you need. The overall width measures 0.75 in. Thickness is a key component to use of this product and measures in at 7 mil. This insulating tape meets the following standards: CSA 2.22, UL 510, VDE 0340 TEIL-3-1, CID A-A-55809B.