With 1/4-20" Quick Release Plate #3049 and 3/8" Euro thread. This is BogenMs top-of-the-line ball head. Superbly designed for cameras as heavy as 26 lbs., it is a finely machined, very smooth operating head that features bubble levels for both axes, a 360 degree scale in 5 degree increments, tension control and pan action levers that ratchet out of the way. A locking lever sets the head as solidly and firmly as you will ever need, and for added safety and convenience, it also has a quick release plate with Safety Lock and both 1/4-20" and 3/8"-16 camera screws.
All ball heads fit any Bogen tripod, or any tripod with 3/8"-16 Euro thread. Ball heads screw right on and can also be locked in with the three locking screws in the center post platform of the tripod base.