This is a set of 2 116mm Orion Guide Scope Rings #07372.
These are brand new in the box. I bought the wrong size. $16.00 gets the rings and free shipping CONUS. PayPal only (never a surcharge).
From the Orion site:
Each Pair Includes a Piggyback Camera Adapter
Our cast-aluminum tube rings feature quick-release, hinged clamp knobs and felt lining. Designed for use with Orion mounts, they fit some other brands of mounts as well. One of the two rings in each set has a 1/4"-20 piggyback camera adapter on it, the other has a threaded 1/4"-20 hole. The piggyback camera adapter can be removed for mounting an adapter plate for a guide scope on top of the tube rings. For use with SkyView Pro or Atlas mounts, you will also need a dovetail mounting plate, #7383 (8") or #7385 (13").
Set of two rings includes mounting bolts and washers. Inside diameter (i.d.) is listed. Choose the size that matches the outside diameter of your telescope tube.