This Collins Small Metal Trim Ring has been stripped and refinished with Baked on Matching Enamel Paint Nice metal trim rings are very hard to find. this one is beautiful and professionally Refinished. It will fit the 516F-2 Power Supply, 312B-4 and 312B-5 Station Consoles, and the 312B-1 Speaker. This Trim ring has been stripped down to bare metal, and fully primed. Only the part exposed outside the cabinet has the final coat of paint to assure a good fit on your cabinet. If not done this way it can mean a very tight fit!