Wide Application: The Neewer wall-mounted boom arm is a space-saving holder for strobe, monolight, ring light, softbox, reflector, and microphone that need to be fixed on the wall of your room, studio, or workshop Adjustable Length: The length can be extended up to 4.3’ (130cm) to suit your different requirements, and the triangle structure adds stability to the boom arm Dual-Swivel Design: You can swing the boom arm up and down or side to side from 0° to 180° for various angle adjustments, or fold it flat against the wall to save space when necessary Secure Mounting: The 4 expansion screws included in the package help you easily mount the boom arm to a solid wall, firm and secure Package Contents: The Neewer Wall-Mounted Boom Arm, and 4 Expansion Screws