What's in the box:

1/4"-20 and 3/8"-16 Threaded Screw Adapter Mount Set (Gray)

Features:
The package includes 3pcs 3/8"-16 to 1/4"-20 male to male screw, 3pcs 1/4"-20 to 1/4"-20 male to male screw and 5pcs 3/8"-16 to 1/4"-20 reducer bushing screw.
Enable more rig combination possibility and freedom in your camera shooting.
Made of solid metal.

Specifications:
Material: Metal
Package Size: 4.5 * 3.2 * 2cm / 1.8 * 1.3 * 0.8"
Package Weight: 65g / 2.3oz

Package List:
3 * 3/8"-16 to 1/4"-20 Male to Male Screw
3 * 1/4"-20 to 1/4"-20 Male to Male Screw
5 * 3/8"-16 to 1/4"-20 Reducer Bushing Screw