可能也不太容易，似乎測度不清楚

The Nikon HK-43 Lens Hood is an official accessory manufactured by Nikon. It is specifically designed for the NIKKOR Z 600mm f/4 TC VR S lens. You can find it on the official Nikon USA website, as well as at authorized photography equipment retailers like B&H Photo Video, Adorama, and others. The product in your image is from Ace Photo, a retailer of photographic equipment. *** ### Measurements There appear to be some slight discrepancies in the measurements provided by different retailers. Here is the available information: Wex Photo Video lists the size as: Height: 16.7 cm (6.57 in) Width: 19.5 cm (7.68 in) Length: 21.5 cm (8.46 in) A third-party lens hood manufacturer that matches the Nikon HK-43's dimensions lists the following specifications: Length: 147 mm (5.79 in) Maximum Diameter: 180 mm (7.09 in) Approximate Weight: 269 g (9.5 oz) B&H Photo Video provides the package dimensions: Box Dimensions (LxWxH): 8.5 x 7.7 x 6.6 inches