Easy to use: Adjust the length of the wall mounting boom arm as you want. Loose the large handy knob and adjust angle and height of the arm to the most suitable position and lock it
Widely Applicable: Standard spigot head with 1/4" screw on one end and 3/8"on the other end, perfect for supporting photo studio equipment like strobe light, monolight, ring light, softbox and wall camera mount