Check the listing for details. Selens 39" Wall Mount Triangle Boom Arm Stand For Studio Softbox Ring Light. Condition: New. Listed at 36.99 USD. About this item Material: Aluminum Alloy Length: 18.5-39.37inch Gross weight: 1.7kg Bearing capacity of the minimum length: 22 pounds/10kg Bearing capacity of the maximum length: 6.6 pounds/3kg Standard 3/8 & 1/4 screw adapter. Compatible with ring light, strobe light, flash light, softbox, reflector, DSLR camera and microphone etc. Features: Save Space: Unlike most similar products on the market, our ring light mount are only 18.5''/47cm when stored, which greatly saves your space. Saving more space, helping to walk through in your studio, making the space feel bigger and clutter free. Dual-Swivel Design: You can swing the ring light wall mount arm swivel 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. Adjustable and Stable: The triangle structure adds stability to the boom arm. So the length can be extended up to 39.37''/100cm to suit your different requirements. The ring light wall mount boom arm can be easily fixed on a solid wall or ceiling. Wide Application : The wall mount ring light boom arm with 1/4'' and 3/8'' adapter screw is compatible with most equipment. It work well with LED video lights, Monolight, Strobe flash, reflector, microphone, camera, and all lighter-weight studio gear. Help in optimizing your studio space (Barbershop/Salon suite/Beauty Salon/Music studio/Photography Studio/Live Streaming, etc) Secure Mounting: This item 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. Package contains: 1 x wall mount boom arm; 4 x M6*50 expansion screws; 8 x M5*30 self-tapping screws