The SLIK SH-807E and SLIK SH-806E are identical in features but vary in size and capacity. Both heads have a newly designed inner mechanism. This creates smoother movements when used with a heavy camera and lens. The heads are all metal with large quick release plates to securely mount heavy cameras and lenses. The handles have large rubberized grips to make moving and locking down the head much easier and more secure. Both have a larger, easier to use pan lock knob. Both are available separately or the SLIK SH-807E comes with the PRO 780 DX complete tripod and the SLIK SH-806E comes with the PRO 580 DX.