SnapSHOT stud insulator provides code-mandated 360 deg. protection for cable runs through metal studs, where sharp hole edges could otherwise gouge plastic or rubber-jacketed electric, communications, or network cable. Other features include folding tabs that enable fast installation with 1 hand and a universal design that fits all pre-punched holes or standard 1-11/32" field-punched holes. UL and CUL approved. 25 per bag.