Leofoto Carbon Fiber Center Column for 100mm Bowl Tripods Black. Made of carbon fiber for lightweight durability it features a rapid column design with a large butterfly twist lock collar. The column base features a ballast hook that can be used to add weight for increased stability while the top features a reversible 3/8''-16 threaded mounting stud that can unthreaded and flipped to reveal a 1/4''-20 threaded mounting stud making it compatible with virtually any head. Specifications for Leofoto DC-404C Carbon Fiber Center Column for 100mm Bowl Tripods: Manufacturer: Leofoto Color: Black Features of Leofoto DC-404C Carbon Fiber Center Column for 100mm Bowl Tripods Aluminum CNC Machining Package Contents: Leofoto DC-404C Carbon Fiber Center Column for 100mm Bowl Tripods Leofoto DC-404C: DC-404C Carbon Fiber Center Column for 100mm Bowl Tripods Black