The packgae includes 1 x 50mm Quick Release Clamp, 1 x 1/4" Screw,1 x 3/8" Screw,1 x wrench.
The Quick Release Plate Clamp Suits for most camera tripod, monopods, telescopes, ball heads, etc.
The Quick Release Plate Clamp with Arca Type:with 1/4" to 3/8" Adapter,metal construction, comaptible with All Arca-Swiss standard quick release plates, including Benro / Arca Swiss / Acratech / Kirk / Wimberley / Gitzo / Manfrotto/job design and etc.