Originally designed to hold a 40x87mm, 6mm thick remote that came with the StarTech VS421HD20 HDMI Switcher. However, the source .f3d file is included so it should be rather straight forward to adjust the model to fit other remote sizes like those typically included with LED lights.
The holder has slots cut out for IR passthrough for usage of the remote without completely removing it from the holder.
The author hasn't provided the model origin yet.