Cobalt Chrome ring core 7 mm and 9 mm total width zsk-7003 and zsk-7004

Cobalt Chrome ring core 7 mm and 9 mm total width zsk-7003 and zsk-7004

Comfort core polished interior

Limited Quantities / While supplies last 

Made in USA, may be unpolished and require additional polishing, may also have a brand / material type marking inside.