What's in the box:

Andoer FC-SK25 Universal Aluminum Alloy Quick Release Clamp Tripod Clamp Knob-Type 1/4" & 3/8" Screw Hole for RSS Arca-Swiss Kirk Marking Benro Sirui SUNWAYFOTO Photo Clam Quick Release Plate and Other Support Accessories (Black)

Features:
Made of high quality aluminum alloy, CNC precision machining, with smooth surface, durable and lightweight. Surface oxidation treatment, anti-friction & anti-corrosion.
With embedded bubble level, can conveniently adjust the levels when shooting.
Knob-type design for strong universality. Can conveniently adjust the width of clamp from 38mm to 45mm.
Equipped with 1/4" to 3/8" adapter screw, can mount the clamp on most brands of tripods, ball heads, brackets and so on. With location notches, can prevent your camera from accidentally dropping.
Adopts commonly used quick release system of Arca standard, compatible with various brands of quick release plate and support accessories. Such as for RSS, for Arca-Swiss, for Kirk, for Marking, for Benro, for Sirui, for SUNWAYFOTO, for Photo, for Clam, etc.

Specifications:
Brand: Andoer
Model: FC-SK25
Material: Aluminum alloy
Color: Black
Slot Width: 38mm-45mm
Compatible Quick Release Plate: For the quick release plate that the title mentioned
Screw Interface: UNC1/4" & UNC3/8"
Item Size: 9.6 * 2.5 * 1.5cm / 3.8 * 1 * 0.6in (L * W * T)
Item Weight: 51g / 1.8oz
Package Size: 10.7 * 3.8 * 3.5cm / 4.2 * 1.5 * 1.4in
Package Weight: 63g / 2.2oz

Package List:
1 * FC-SK25 Quick Release Clamp