Yanagisawa Saxophone Hook GP for Yamaha

Yanagisawa Thumb's Wizard, Thumb Hook Only, GP for Yamaha.
Made of brass with gold plating.
It contacts the instrument at seven points, maximizing its resonance.

It has been used for a while, so there is some plating wear on the part that touches your fingers.

There are scuffs from installation.

The heads of the seven points on the back have been slightly filed down to increase stability.

I used it on a Selmer as shown in the 7th and 8th images. Because the Yamaha model is slightly larger, your thumb does not hit the fixing screw or base, making it comfortable to use.
Of course, it fits Yamaha instruments perfectly.

Thank you for looking.