The HHA optimizer lite 5500 sight .010 has a total tooless micro windage adjustment system, patented ds-tapes and mathews harmonic damper. Includes a revolutionary yardage dial that allows for rapid adjustment by the yard. Simply sight in 20 and 80 yards and select one of the included color coded tapes, numbered in one yard increments. Is 9-ounce with a 1 and 588 inch sight housing, 5 feet of fiber optic and an exclusive mechanical rheostat light to adjust pin brightness.