1.Locking System is located on the side of the ball instead of the bottom of the ballhead. Whole center of gravity  is lowered more than 15%;
2. Adopts geared  locking structure,  higher locking strength;
3. 360° panning movement with calibrated precision, precisely capture overlapping panoramic images
4. Compatible with Really right stuff (RRS), Wimberley, Jobu Design, Arca Swiss, Kirk Enterprises, Markins, Photo Clam etc.
5. Ideal for Gitzo, Manfrotto, Sirui, Benro, RRS tripod.SUNWAYFOTO XB Series Superior Low-Profile Ball Head XB-28 With a Standard Screw-Knob Clamp.