Stable Structure: The triangular structure of the ring light mount makes it more stable in use and greatly increases the load-bearing capacity, allowing you to install a wider variety of equipment. Secure Mounting: The ring light wall mount is made of aluminum alloy with a sleek black finish, sturdy and corrosion-resistant. You can use the 4 expansion screws included in the package to mount it on concrete walls, or use the 8 regular self-tapping screws included to mount on wood walls and drywall, firm and secure. Great Compatibility: Standard 1/4 and 3/8 adapter screw, perfect for supporting photo studio equipment like strobe light, monolight, ring light, softboxes, umbrellas, microphone and reflectors. Flexible Design: The length can be extended up to 39.37inch/100cm to suit your different requirements. You can swing the boom arm up and down or side to side from 0° to 180° for obtain accurate beam angles, or fold it flat against the wall to save space when necessary. Space Saver: The wall mount boom arm for ring light is only 18.5inch/47cm when stored, and does not occupy floor space, greatly free up space and makes your studio safer, and adds a convenience factor.