Lens Hood 1pc, 202mm (7.95in) long. Matches Canon ET-161 hood dimensions.

Bayonet-mount 1pc lens hood kit. Matches Canon ET-161 hood dimensions. Length: 202mm (7.95in). Maximum diameter: 184mm (7.24in). Extension beyond end of lens: 175mm (6.89in). Approximate weight: 378g (13.3oz). Fits Canon EF 600mm f/4L USM, EF 400mm f/2.8L USM .