Features:With the surface of chromium plating, wear-resistant and durable.1/4" to 3/8" convert screw adapter for cameras, tripods, ball heads, light stands, flash brackets and monopods etc., to be joined, perfect matching.A special designed tripod convert screw adapter.Specifications:Inside diameter: 1/4"(British system)Outside diameter: 3/8"(British system)Material: CopperColor : SilverPackage List:1 x 1/4" to 3/8" Tripod Monopod Convert Screw Adapter