Anvil Lok-Shield locks in place with easily bent tabs that wrap around the clevis hanger’s side and hold the insulation shield firmly in place during installation. These side tabs allow installers to avoid damaging insulation, a common issue when installing insulation protection shields with bottom tabs, preventing potential tearing of insulation or rupturing the vapor barrier. It can be used with 5" diameter or smaller clevis hangers. It comes in 8 shield sizes from X1A to 7A.