Lens Hood 1pc, 50mm (1.97in) long. Replaces Canon ET-155 hood. (MK I, RF)

Bayonet-mount 1pc lens hood kit. Replaces Canon ET-155 hood. Length: 50mm (1.97in). Maximum diameter: 180mm (7.09in). Extension beyond end of lens: 26mm (1.03in). Approximate weight: 151g (5.3oz). Fits Canon EF 400mm f/2.8L IS USM, RF 400mm f/2.8L IS USM, EF 800mm f/5.6L IS USM.