Clarinet Mouthpiece Wi&fi S1

This is a clarinet mouthpiece, wi&fi (Wee and Fee) S1.
It has been used a few times, but I am selling it because I have many mouthpiece backups.
I purchased it because I liked its good sound projection and clarity, as well as its ease of articulation and clear tone contour, so I believe it would be suitable for those who are concerned about these aspects.
I think this mouthpiece would be useful in various settings such as concert bands, orchestras, and jazz.

The following is quoted from the website:

This mouthpiece is manufactured by Willie and Filz's Brother, clarinetists from Taiwan.
Using the new material *V-Quartz, we have achieved excellent sound projection, cohesion, and a vibrant contour.

*A material hardened with quartz. It features high hardness and heat resistance.
The tone color is slightly darker than that of general ebonite (vulcanized rubber) mouthpieces.
Since there is no tarnishing of keys (silver products) due to sulfur, it can be stored in the case along with the instrument.

[Line Characteristics]
S Series: Compact yet possesses both richness and a sense of color.

Thank you.