K8400 dual size spool holder

I bought filament on 75 mm wide spools with 60 mm diameter center holes. They do not stay on the k8400 spool holder very well. With this holder you can choose one of the top plugs and easily switch spool sizes. Original size and wide.

You need the 4 bolts from the original holder, and perhaps some tape to make the plug wide enough to securely stay in place.