6-in-1 1/4" 3/8" 5/8" Tripod Convert Screw Adapter to Light Stand Umbrella Camera Holder The adapter can be combined into the six ways to convert your screw or spigot, can be used for devices with 1/4 or 3/8 screw or thread. 1/4"Female-3/8"Female spigot adapter(A adapter) Material: Chrome-plated steel. 1/4"Male-1/4"Male screw adapter(B adapter) Material: Chrome-plated steel. 1/4"Female-3/8"Male screw adapter(C adapter): Chrome-plated Brass. Color: Silver. All-metal material, electroplated surface, anti-wear, anti-oxidation, durable.