Manfrotto MDeVe Video Leveling Column for the 3021B Pro Tripod, with Built in 50mm Half Ball, 15 Degrees of Leveling
MDeVe Levelling center column 555B : Aluminum column for 3021PRO Tripods. Our innovative system means you can quickly level your photo or video head. A built-in 50mm half ball with 15° of levelling is mounted on top of the tripod center column so as to make the angle of the plate independent of the rest of the tripod. Locking and unlocking of the half ball is via a turning grip on the bottom of the center column.