Snowboard Addiction Training Board Binding Mount Disc - 3D, 4x4, Channel, Skate

The Snowboard addiction binding only comes with 4x4 mounting disc. I want to mount on my old Burton snowboard which is 3D pattern Hole. So I create the disc for it. I also create all the different mounting disc in case someone wants to use with different mounting hole system.
I also make a special disc to mount on skateboard deck for the jib practice.