This is a neck screw for a saxophone made by Benefact. It is compatible with Yanagisawa/Selmer saxophones. It is gold-plated. It gives a more profound tone than the original. I am selling it because it did not fit my vintage saxophone. (There is no problem with the part itself) There are no stripped threads or distortions, and there are no problems with normal use. Please understand that this is a used item, so there may be minor signs of use.