Sabian HHX X-treme 17 inch Crash cymbal in flawless, as new condition.

B20 alloy, Made in Canada.

You can hear this exact hihat in the following YT video:

https://youtu.be/Ri9V8ou4n6g

Manufacturer's data sheet:

https://sabian.com/product/11792xn-17-inch-hhx-x-treme-crash/