This is a genuine KUHN 58557200 outer shaft, specifically designed for use in various KUHN GMD series mowers. It is compatible with models such as GMD 280, GMD 310, GMD 350, GMD 400, GMD 44, GMD 500, GMD 600, GMD 66, GMD 700, GMD 77, GMD 800, GMD 88, GMD 900, and GMD 99. The shaft measures 290 mm in length and weighs 0.60 kg, providing a precise fit and optimal functionality for your agricultural machinery.