Lens Hood 1pc, 120mm (4.72in) long. Matches Canon ET-138 hood dimensions.

Bayonet-mount 1pc lens hood kit. Matches Canon ET-138 hood dimensions. Length: 120mm (4.72in). Maximum diameter: 163mm (6.42in). Extension beyond end of lens: 94.5mm (3.72in). Approximate weight: 226g (8oz). Fits Canon EF 500mm f/4L IS USM.