The SmallRig 1138 is a multi-function super clamp with double ball heads and a 1/4" screw mount, which allows you to mount your monitor and LED lights on one end of the clamp. The clamp features an articulating ball head arm that can support accessories weighing up to 3.3 lbs, making it a versatile tool for your video production needs. The clamping size of the 1138 is the same as the 2164, with both having 1/4-20 threaded mounts. It is worth noting that import tax may be incurred with the package when purchasing SmallRig accessories.