Description: This convert adapter allows you to convert your 1/4 inch screw mounts to 3/8 inch, and also allows 3/8 inch threaded equipments onto 1/4 inch devices head. One end is 1/4" female thread, and the other end is 3/8" female thread. It can be used with tripods,light stands, flash brackets, monopods, telescopes, ball heads, etc. Can be used in 1/4" or 3/8" tripod head quick release plate, support for multiple holders. Durable aluminum alloy material, anti-wear, anti-oxidation. Specification: Material: Aluminum Alloy Color: Silver Female Thread (Inside): 1/4 inch & 3/8' inch Widest:16mm Narrowest: 12mm Package Includes: 1 Piece 1/4" to 3/8" Female Screw Convert Adapter