The Sirui ball head K-40X has a high quality level and  is compatible to the Arcs Swiss standard. New about the Mark II are the handles from hard plastic instead of rubber, they can't speperate themselvs from the metal no more, but are not as cold als metal especially in winter.

The ball head has a spirit level, a seperate panorama platform and a seperate friktion in the main handle.

The Arca-Swiss kompatible plate TY-70X is included.

features:

• full metal ball head from aluminium
  
• 360° stepless panorama platform
• separate friktion in main handle
• Arca Swiss compatible
• 90° upright format level
• weight: 810 gramm with plate, 760 gramm without
• height: 125mm
• plate TY-70X is included
• 3/8" screw mount