Weight is almost 2 lb. This head has quick release adapter. Two(2) included camera plates. One for 1/4" thread, and one for 3/8" tripod thread. This plate can be used on lots of cameras.Ball head will lock tight and adjust smoothly, with no problem. Good working tension screw adjustment. This head has always been a favorite for all pro photographers and coud be use for 35mm, Medium and light Large Format cameras. Sells with NO RESERVE at a price of. I have more Tripod Heads, Large Format cameras, Lenses and Accessories, Medium format cameras, Subminiature and Soft Focus Lenses. The item "Arca Swiss B1 Tripod QR Ball Head. Gitzo, Linhof, Manfrotto, Ries" is in sale since Tuesday, April 16, 2019. This item is in the category "Cameras & Photo\Tripods & Supports\Tripod Heads". The seller is "igorcamera" and is located in 11111. This item can be shipped worldwide.