This is a sterling silver thumb hook for a saxophone made by Years, type 3. I am selling it because I changed my setup. As stated on the HP, I could clearly feel the improved low-end response while playing. ★Please feel free to ask any questions in the comments section★ Below is information from the HP: Sterling Silver (SILVER925) Thumb Hook 【 Type 3 】 By replacing your thumb hook with an EARRS sterling silver thumb hook, you can bring out the potential of your saxophone, and experience a pleasant response from delicate to powerful sounds. In particular, the expressiveness of the low notes is rich, resulting in a calm, refined, and soft tone. The curl of the hook that rests on the thumb has been lengthened to increase stability. ※ Compatible brands: Selmer, Yanagisawa, Cannonball, and other Taiwanese brands Years earrs Soprano Alto Tenor Baritone Saxophone Retail price: 25,080 yen