SK Grimes Slip On Adapter for ~54mm OD lenses w/o filter thread to 67mm 67 z7

Description

I amassed a massive amount of step-up and step-down rings for any potential combination of lenses and filters in my collection.  It's time to downsize so I'm offering them here.  Some pictures show a metal ruler for reference when the size is not printed on the ring -- this is shown just for reference; all measurements were taken with dial calipers.  Unless otherwise noted, all rings are in very nice shape with minimal wear.
I combine shipping -- please place the items you'd like in your cart and then request a total so that I can remove the excess shipping.
This is a filter adapter that SK Grimes makes to order for lenses without filter thread.  It slides over the lens barrel and an O-ring holds it in place without marking the finish.  I forgot which lens I ordered this for, but the inside diameter of this adapter is 54.25 mm, so it will fit onto a lens with a barrel diameter of 54mm, maybe a little less.
From SK Grimes:
"A slip-on filter adapter is a custom designed adapter for lenses that have no filter threads.
Functionality
Our patented design
adapter slips easily over the lens and won’t mark the finish. They provide a standard thread type of our choice making sure to get the most use out of your equipment.
Beneficial Features
The simple design of the adapter involves cutting slots around the part we machine to fit over the lens. The slots are made so that when a rubber “O” ring is stretched around the outside it seats into the slots and provides the friction needed to keep the adapter and filter in place.
Pricing
The adapter can be put on and taken off without any tools. The ring can be replaced if the rubber should take on excessive wearing. These filter adapters are custom made and designed to fit an individual lens. Small slip-on adapters start at with larger sizes cost – 0."