1mm GP Neck Joint Super Ring for Yamaha Soprano Saxophone, Made of Solid Silver "Nagasawa Seisakusho" original wind instrument boost item. * Attach a 1mm "K24 gold-plated 950 silver ring" to the neck joint of a Yamaha soprano saxophone. ☆ Typical characteristics of each surface finish ☆ Solid Silver: Characterized by the soft tone of silver. GP: Characterized by a rich resonance with good articulation. PGP: Characterized by a warm resonance. Effects Makes it easier to produce altissimo notes. Thickens the sound of altissimo notes. Improves the resonance of altissimo notes. In addition, many users have reported other benefits, such as an overall improvement in resonance and tone stability. Made using the same silver soldering and polishing process as rings. Quantity: 1 ring. Material: 950 Silver Ring inner diameter is 18.0mm (with some error). Ring outer diameter is 20.0mm (with some error). Made to be slightly loose. Please give it a try. Nagasawa Seisakusho, combining the trial playing and manufacturing by a saxophone player who has won international competitions, designs and manufactures solid silver wind instrument boost items at their workshop in Hatoyama-machi, Hiki-gun, Saitama Prefecture. Thank you for your interest. #NagasawaSeisakusho #NeckRing #Saxophone #Yamaha