Genuine AL-KO fixing kit for AKS 3004 head. If you have purchased a second hand head that did not come with fitting kit, it enables the AKS3004 head to be fitted to Knott 45mm drawtubes, as well as the AL-KO 35 and 50mm drawtubes AL-KO part number 1336334 Kit contents: 1 x Bellows, 2 x Side Shims Thin, 2 x Side Shims Thick, 2 x M12 head bolts and Lock Nuts,1 x M12 Coach Bolt, 47mm and 34mm Assembly Slugs for Damper and 1 x Drawtube grip.