Quick Release Coupling for big lenses - Big support plate - Compatible with different dovetail plates (Arca-Swiss, Novoflex, Burzynski) - Delivery without quick-change holder - we offer different lenght of quick-change holders (accessories) - recommand you the quick-change holder with 87 mm length (item no. 320282) - with rubberstring for turnprotection - Integrated spirit level - With lock screws - Mounting thread 3/8" - Size: 95 x 90 x 18 mm