Fast Adapter - The adapter is a locking adapter that quickly switches between devices. Suitable for flat head light stand, boom arm, etc. With 3/8 Screw - 3/8 screw on top, Can be installed vertically or horizontally. Fit for more equipment, include photography lights, flashlights, pan/tilt, quick-loading boards or cameras. (requires 3/8 screw hole) Converts a 5/8- Inch Light Stand Tip- 17Mm to a 3/8- InchM Thread. High Quality - Material: Aluminum. Colour: Black. Made from high quality materials, it can be reused and has a long service life. 1-Year Limited Warranty