Lens Hood 1pc, 159mm (6.26in) long. Matches Canon ET-161B hood dimensions.

Bayonet-mount 1pc lens hood kit. Matches Canon ET-161B hood dimensions. Length: 159mm (6.26in). Maximum diameter: 184mm (7.24in). Extension beyond end of lens: 132mm (5.2in). Approximate weight: 317g (11.2oz). Fits Canon EF 600mm f/4L USM, EF 400mm f/2.8L USM .