Tritium night sights transition from standard white dot sights during the daylight, to glowing green dots in the dark. Tritium does not need batteries. Front Sight Length: 1.0". Front Sight Width: 1.0". Front Sight Height: 1.0". Rear Sight Length: 1.0". Rear Sight Width: 1.0". Rear Sight Height: 1.0". Compatible w/Glock 9mm Luger/40 S&W.
Specifications:

Type	Front/Rear Set
Frame Material	Steel
Frame Color	Black
Firearm Fit	Glock 17/17L/19/22/23/24/26/27/33/34/35/38/39
Base Configuration
Style	Square
Front Material	Tritium
Rear Material	Tritium
Front Color	Green
Rear Color	Green
Rail Size
Windage Adjustment
Elevation Adjustment
Fiber Diameter
Firearm Type	Pistol