They are up toup to 80% quieter than a traditional cymbal.
Zildjian L80 18" Low Volume Crash Ride Cymbal
Zildjian L80 468 Low Volume Cymbal Pack
Zildjian L80 14" Low Volume Hi-Hats
Zildjian L80 Low Volume Hi-Hat, 13-Inch Cymbal
Zildjian L80 Low Volume Crash Ride 18”/45cm Cymbal / Accessory #WC19
Zildjian L80 Low Volume Crash 16”/40cm Cymbal / Accessory #WC18