Surplus to my requirements is a pair of genuine Elite Spiral Strength™ Wooden Gymnastic Rings in the professional FIG size (28mm thickness).

These are probably the best wooden gymnastic rings available, as unlike all other brands, they are not cut from a flat sheet of plywood but are instead made from a continuously wound spiral of birch strips.

Main attributes (copied from the retalier's website) are:

• Stronger than typical plywood rings
• Smooth, clean wood finish
• Durable, lightweight construction
• Optimised grain alignment  

I have used these rings only a couple of times, as the 28mm thickness is too small for my large hands and I don't use gloves. As such, condition is near new.