Features:
1/4" metal male thread.
D-ring with  flat head screwdriver slot， can drive it by coin.
Made of aluminum alloy material， and silver plated surface.
Suitable for all kinds gears with 1/4" screw hole. 
Perfect for any photographer.

Specifications:
Materiel: Aluminum alloy
Color: Sliver
Size: 1.3 * 1.5cm / 0.5 * 0.6inch(D * H)
Weight: 57g / 2.01oz

Package List:
10 * 1/4" Screws