1With standard 1/4" threads, scale plate and built-in bubble level, very convenient for use. Jaw can be opened from 37mm to 42mm, suitable for any Arca style plate such as RRS, Wimberley, Jobu Design, Arca Swiss, Kirk, Markins, etc.

Specifications:
Material: Aluminum Alloy
Color: Black
Item size: 7.8 * 5 * 2.0cm / 3.1 * 2 * 0.8in
Item Weight: 88g / 3.1oz
Package Size: 8 * 5 * 3cm / 3.1 * 2 * 1.2in
Package weight: 91g / 3.2oz

Package List:
1 * Clamp for Quick Release Plate
1 * 1/4" Screw