This is a ring that can be used with the Revolver Caddy on thingiverse, thing https://www.thingiverse.com/thing:2997593. The base does not print with a way to hold the revolver caddy in place if you pick it up. There are two ways to use the ring. Print and Glue after attaching the caddy. Or in your slicer attach as a part, align and attach the ring at the very top of the base stl. Then in your slicer add a pause command at approx layer 77. This will give you a chance to remove the caddy from your print bed if you are printing on the same bed (Otherwise print the items separately but wait to print the base until the Caddy is finished. Then add lubricate per thingiverse instructions then place on the base. Resume your printing and then the ring will print in place and finish of the print nicely with a way to lift the unit without separating.