Specification: Minimum Height: 48.4 inches/123cm Maximum Height: 151.5 inches/385cm Maximum Length (Arm Bar): 85 inches/216cm Arm Bar Rotation Angle: 180 Degree Bar Diameter: 20mm-25mm Stand Diameter: 30mm-35mm Stand Leg Diameter: 25mm Total Weight: 4.5kg Package Contents: 1 x COOPIC L380 Light Stand with Boom Arm(Silver) 1 x Sandbag WIDE COMPATIBILITY: Universal standard light boom stand is a great support for most of photographic equipment, such as softbox, umbrellas, strobe/flash light, and reflector. Perfect to use outdoor and indoor, giving you a great support to meet various photo or video shooting situations. 2 in 1 USE: Without the boom arm, equipment can be simply installed on the light stand, While for more flexible use, please attach the boom arm onto the light stand and then you can extend the boom arm and adjust the angle by using the butterfly knob to achieve more user-friendly performance ADJUSTABLE: Feel free to adjust the height of the light stand from 48.4 inches/123 centimeters to 151.5 inches/385 centimeters, The arm can be extended to 85 inches/216 centimeters length, It can also be rotated to 180 degree which allows you to capture the image under different angle HEAVY DUTY CONSTRUCTION: Wide footprint for stability, this light stand can be trusted with your most precious lighting equipment, Sandbag included gives a perfect counterbalance for safety EASY INSTALLATION: Only few steps needed to install and take down this support system. Easy to assemble and fold in, saving much of your time NOTE: Softbox is not included. The boom arm cannot be used alone. Sandbag comes empty.