The best sight HHA has ever built. All the features of the NYTRX plus the ability to swap between yardage wheels to shoot multiple arrow setups and for ease of swapping between tapes. Looking to swap between scopes and and indicators? The NYTRX PRO X4 4-Pin Dovetail Mount Bow Mount is the only way to go. Each NYTRX PRO comes with two yardage wheels, to seamlessly swap between your set ups. Features4-PinDovetail Mounting StyleVariety of Pin SizesAvailable in Left and Right Hand