This is a Bosch Air Filter designed for various Vauxhall, Opel, and Chevrolet models, including the Astra J, Orlando, and Cruze. It is a filter insert with dimensions of 250 mm in length, 256 mm in width, and 35.5 mm in height. The filter is compatible with engine codes F16D4, F16D3, and F18D4, and is suitable for models with specific construction years and engine numbers. This part is equivalent to OEM part numbers 13272717 and 835056.