What's in the box:

Andoer KZ-40 Universal Aluminum Alloy Tripod Head Disc Clamp Adapter w/ PU-70 Quick Release Plate Compatible for Arca Swiss (Black)

Features:
Disc clamp, 3/8" screw hole on the bottom. Built-in spirit level.
Jaw opening range can be adjusted from 37mm to 42mm.
Will accommodate any Arca style plate, such as (RRS), for Wimberley, for Jobu Design, for Arca Swiss, for Kirk Enterprises, for Markins, etc.
PU-70 universal quick release plate with 1/4" screw mount, 69mm/length, 38mm/width, 10mm/height.
With the help of 1/4" female-3/8" male screw(included), it can be directly mounted onto any ball head, tripod, gimbal and monopod.
Made of aircraft-grade aluminum, CNC precision machining, surface oxidation treatment.

Specifications:
Brand: Andoer
Model: KZ-40
Material: Aluminum alloy
Quick Release Plate Size: 6.9 * 3.8 * 1cm / 2.7 * 1.5 * 0.4in
Jaw Opening Range: From 37mm to 42mm
Item Weight: 136g / 4.8oz
Package Size: 9.5 * 9.5 * 10.6cm / 3.7 * 3.7 * 4.3in
Package Weight: 200g / 7.1oz

Package List:
1 * Universal Disc Clamp
1 * Quick Release Plate
1 * Screw
1 * 1/4" Female-3/8" Male Screw
1 * Hex Wrench