Description Compatible with Leica – GeoMax and Carlson instruments and offsets 23MM Prism constant Prism Height 86 mm Prism accuracy <5 seconds Pointing accuracy <2mm to face of prism Range up to 2,000 ft (600 m) Push button quick release Male 5/8-11 thread on top Carrying Case Included Weight: 1.25 lbs (.06kg) (shipping weight may vary)