Bayonet-mount 2pc lens hood kit. Replaces Canon ET-120 hood. Length: 125mm (4.92in). Maximum diameter: 153.5mm (6.04in). Extension beyond end of lens: 104.75mm (4.12in). Approximate weight: 180g (6.3oz). Fits Canon EF 400mm f/4 DO IS USM, EF 300mm f/2.8L IS USM, EF 200-400mm f/4L IS USM. Sections are 70.5mm (2.78in) long. Handling a two-piece hood: https://youtu.be/laydgwmaQG4
