Note: The monolight is NOT included. This kit must only be fixed to a solid wall Solid Base: With triangle base design, giving it more stability. Comes with 4 pieces stud expansion screws, helping fix the wall mounting on the wall solidly Adjustable Positioning: 180 degree Rotation allows you to adjust its angle and height synchronously Extendable Length: The aluminum boom arm is designed with adjustable length extending up to 66.5 inches/169centimeters Can be fixed on a solid wall, spare more space for you. Perfect for supporting studio lighting, soft umbrella and reflectors, etc