Thank you for the question. This forearm has a hornbeam core diameter about 16.7 mm. Diameter of the joint is about 21.2 mm. Joint ring wall thickness just about 2.25 mm. It is too small to put a complex rings reliably. It is necessary to have about 3mm wall, to apply such rings to make the depth of inlay about 2 mm . The joint is too critical part of the cue to loosen it with decor. I think so. The customer has agreed with my arguments.