Material: The wall mounting boom arm is made of aluminum alloy with a sleek black finish, sturdy and corrosion-resistant | Adjustable Length: The wall mount boom arm is designed to extend from (29.5in) to 4.3ft(51in) , and can be rotated up to 180 degrees. It allows you to adjust the angle of the camera studio wall mount to meet your needs. It can be easily fixed on a solid wall or ceiling | Space Saver: The Ring Light Wall Mount can be easily fixed on a solid wall or ceiling. It can help to walk through in your studio, making the space feel bigger and safer | Widely Compatible: Included 3/8 & 1/4 adapter screw, this wall mount triangle boom arm is perfect for mounting equipment on wall and ceiling, like ring lights, studio video strobe lights, monolights, flash, softboxes, soft umbrellas, reflectors, DSLR and more device | Triangle Base: 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