The Fatty has taken the world by storm and is a favorite amongst Compoind archers work wide due to it's price and ability to hold a large amount of flex in it's super stiff .870 thousands of an inch outside diameter caron grid rod. The Fatty uses machined inserts on oppsing ends to help keep wind drag to a limited amount and has a fully adjustable 1-1/8" Doinker Supreme at the distal with Aluminum Universal weights.