(8FBB, 10FBB, 12FBB) Columbia offers the widest range of high quality, high capacity finishing boxes in the world. From our 8″ Fat Boy to our 12″, they are all star performers. Well-built and fine-tuned to offer great flat joints for years. We have been told for years that our boxes are the smoothest finishing and easiest to push, and now they’re also the highest capacity on the market. We are very proud to get this feedback and will make sure that every Fat Boy box we make exceeds your expectations. FEATURES: Available in 8″, 10″, 12″ sizes Bead wheel protects axel from wear while running box on bead Hand made from U.S. billet aluminum and steel components Machined in our state of the art facility in Canada DOWNLOADS: FAT BOY BOX SCHEMATIC 2019 FAT BOY BOX SCHEMATIC 2015 FAT BOY BOX SCHEMATIC 2007