The Rock Solid 7" Articulating arm is designed to hold a variety of devices including iPads tablets phones and other light fixtures solidly in place. Easy to adjust and maneuver simply turn the single knob to release all of the articulating joints and adjust to the new desired position or angle. The sturdy elbow design features a locking lever control at the pivot. The arm includes two fully articulating joints at both ends and will hold any fixture up to 4.5 lbs. The two 1/4"-20 male threads on both ends of the arm enable a connection to any device with a 1/4"-20 female receptor. The 7" articulating arms is sold with a removable hot shoe adapter for camera mounting. Constructed entirely of aerospace aluminum the Rock Solid Articulating Arms comes with the Tether Tools Lifetime Warranty.