TRUGLO Range-Rover PRO LED Bow Sight ZeroIn adjustment dial with over 80 premarked yardage tapes (included) for simple setup; Black reference circle with lighted center dot for superior long distance accuracy Adjustable green and red (TG6402GB only) led with 1 1 brightness settings (3v CR2032 battery included); Sight housing accepts 1.87 in. Scope lens (sold separately) Microadjustable windage  precision click design; Updated bracket design for increased compatibility with more bow models Adjustable endoftravel stop customizes maximum yardage setting; Laser marks for windage and elevation adjustments Adjustable for left and righthanded shooters; Adjustable quiver mount included