Specification Brand : BUZHI BulletPoint1 : 【Multi-purpose Wall Mount Boom Arm】With 1/4 inch & 3/8 inch connection screw, the wall mount boom arm is suitable for photography strobe, monolight, ring light, softbox, reflector and other devices that need to be installed on the wall of your studio. BulletPoint2 : 【Sturdy and Stable Structure】Made of aluminum alloy material, durable and sturdy, not easy to rust, and adopts triangle structure to increase the stability of the wall mount boom arm, safe and reliable to use. BulletPoint3 : 【Adjustable Length】Featuring 2 sections of telescoping tubes with 35mm/30mm diameter, the length of the wall mount arm can be extended from 72cm-130cm/28.3in-51.2in according to your different usage requirements, very convenient to use. BulletPoint4 : 【Flexible to Use】You can swing the wall mount arm swivel up and down, or left to right from 0° to 180° for various angle adjustments, and you can fold it flat against the wall to save space when not in use. BulletPoint5 : 【Easy to Install】Comes with 4pcs expansion screws, you can easily install the boom arm to a solid wall. With sturdy and large base, firm and secure.(Note: The wall mount boom arm need to be fixed on the load-bearing wall.) ItemName : BUZHI Wall Mount Light Stand Wall Mounting Triangle Boom Arm Light Stand for Photography Strobe Light Monolight Softbox Reflector Ring Light Aluminum Alloy 5kg Load Capacity 180° Rotatable, Max. Leng ItemTypeKeyword : photographic-lighting-booms-and-stands Manufacturer : BUZHI PartNumber : MSUS-D11762-1-HKX ProductDescription : 【Sturdy and Stable Structure】Made of aluminum alloy material, durable and sturdy, not easy to rust, and adopts triangle structure to increase the stability of the wall mount boom arm, safe and reliable to use. 【Adjustable Length】Featuring 2 sections of telescoping tubes with 35mm/30mm diameter, the length of the wall mount arm can be extended from 72cm-130cm/28.3in-51.2in according to your different usage requirements, very convenient to use. 【Flexible to Use】You can swing the wall mount arm swivel up and down, or left to right from 0° to 180° for various angle adjustments, and you can fold it flat against the wall to save space when not in use. 【Easy to Install】Comes with 4pcs expansion screws, you can easily install the boom arm to a solid wall. With sturdy and large base, firm and secure.(Note: The wall mount boom arm need to be fixed on the load-bearing wall.)