Color Black Model C1657 Material Aluminium Quantity 1 Set Type Others Retractable No Full Size 6 cm Ring Diameter 3 Min.Height 3 cm Max.Height 3 cm Max.Load 10 kg Other Features Improved design all-metal material CNC precision machining surface oxidation treatment; Built-in spirit level compass and 360 degrees precision scale; The clamp interface is compatible with RRS/ARCASWISS/KIRK/Wimberley/MARKINS/SUNWAYFOTO/kangrinpoche/BENRO/SIRUI ball head and quick release plate of AS interface. Packing List 1 x Panoramic head 1 x Quick lease plate 1 x Wrench 1 x Nut 2 x Bolt