The price is for one piece
Material : Ceramic +Brass
Measurement
As the listing showed
Screws:
1.0’’ (25 mm) as default.
Screws are available in 0.79’’(20 mm), 1’’( 25 mm), 1.18’’( 30 mm), 1.38’’( 35 mm), 1.57’’( 40 mm), 1.77’’( 45 mm), 1.97’’( 50 mm).
If you have special requirements on screws, please feel free to let me know.