Bayonet-mount 1pc lens hood kit. Replaces Canon ET-155 hood. Length: 163mm (6.42in). Maximum diameter: 180mm (7.09in). Extension beyond end of lens: 139mm (5.48in). Approximate weight: 313g (11.1oz). Fits Canon EF 400mm f/2.8L IS II USM, EF 400mm f/2.8L IS III USM.
