Decreasing Diameter Pin Design provides smaller pin sizes for longer distances. Features ultra fine toolless micro adjustability, unique stainless steel tube pin design for increased durability and brightness, extra-long fibers for maximum brightness, TruTouch Soft Feel Technical Coating and an adjustable 2nd axis aperture. Level is illuminated with luminescent tape. Has markings for windage, elevation, and pin adjustment and a 2 inch aperture. Ambidextrous. Removable push-button light included.