This is a extra set of CR150 Celestr/Synta Tube Rings.
Since they are factory, they match existing CR150 rings.
They are in good condition, except the paint is missing
only on the flat areas where the dovetail usually bolts to.
Tube diameter for the CR150 is about 5.5 inches, so can be
used for other scopes, or used for accessories on a CR150.