【Product Overview】 This is a Gibson genuine replacement part "BR-055" that I obtained about 25 years ago. It is a set of a chrome-finished ABR bridge and a rosewood base. The base is not threaded. It has been stored unused, but the orange cardboard backing has faded over time. There are stains, sun damage, and wrinkles on the back of the cardboard. There are traces of a price tag sticker on the front, and dust has adhered to the surface, which is packed in transparent film, due to the unevenness of the parts. The packaging shows its age, but the parts themselves are believed to be in good condition. Since the product itself is unused, it is listed as "new and unused." We are unable to answer detailed questions about size, compatible models, etc. We look forward to your consideration if you understand that this is an old Gibson genuine part. It will be shipped via Yu-Packet Post. Thank you for viewing.