Nagasawa Seisakusho Original Wind Instrument Boost Item All Silver Bell Post Screw Set PGP @ For Selmer By changing the bell post screws to all silver, you can obtain a clear resonance and high-pitched extension that cannot be achieved with brass, as well as a responsive sound and a heavy sound even in the low range. Please give it a try. Material: 950 Silver PGP Applicable models: All Selmer models with 3-point bell posts from Mark VII onwards Bell side: 1 piece 3rd tube side: 2 pieces This is a screw set. If you would like other plating, we will do it upon request. At Nagasawa Seisakusho, we have devised and manufactured all-silver wind instrument boost items in our workshop in Kawagoe City, Saitama Prefecture, combining trial playing and manufacturing by a saxophone player with experience in winning international competitions. Thank you for your consideration. #NagasawaSeisakusho #Selmer #Yamaha #Yanagisawa #BellPostScrew #Sax