The Haoge 64mm (2.52") Discal Clamp is a Arca Swiss compatible screw knob clamp. It has a captive knob, safety-stop grooves, and a hollowed-out design that reduces the weight of the clamp. You can use an screw to mount it to an AS style ball head or panoramic head, and it will accept any standard Arca-Swiss quick release plate. There is a 3/8" threaded hole at the center for mount the clamp onto a tripod or monopod. 0 Features:
Arca Swiss standard quick release clamp.
Fast loading base with antiskid lock function.
Aluminum alloy, CNC precision machining, surface oxidation treatment.
Built-in spirit level for leveling your camera.
With the female thread of UNC 3/8" standard, and 3/8" to 1/4" Screw Adapter which can be used on virtually any head, tripod or monopod.

Compatible with AS standard plate such as: RRS, ARCA--SWISS / KIRK / Wimber ley / MARKINS / SUNWAYFOTO / Kangrinpoche / BENRO / SIRUI etc.

Compatible with ballhead, tripod or monopod of Gitzo, Manfrotto, RRS, Arca-Swiss...

Specifications:
Material: Aluminum alloy
Color: Black
Length: 112mm
Width: 64mm
Thickness: 15.5mm
Item weight: 120g

Package included:
1 x Haoge CP-64 64mm Quick Release Clamp
1 x 3/8" to 1/4" Screw Adapter