The Hi-Viz CZN421 H3 Ns Cz 75 G/o Wh Night Sight Set combines Tritium with the HIVIZ LitePipe technology for 24-hour illumination. Now you can have the advantage of day and night performance all in one sight system. All steel construction sight sets are rugged and durable, designed for the roughest use, whether it is personal defense and protection, Law Enforcement or Military. The LiteWave H3 ensures fast sight acquisition and a bright sight picture day or night.Features :Fits CZ 75, 85, & P-01 Pistols with Fixed Rear SightsSight Visibility in all Light ConditionsUltra Bright Encapsulated TritiumFront Blade Height 0.160, Rear Blade Height 0.230All steel construction