All Optimizer Lite Ultra Series Sights are constructed from 100% Machined Aluminum and feature our green sight ring, Totally Toolless micro windage adjustment system, A.R.M.O.R. Sight Pin Technology, Patented DS-TAPES and Mathews® Harmonic Damper™. They also include a revolutionary yardage dial that allows for rapid adjustment by the yard. Simply sight in at 20 and 60 yards and select one of the included 52 color coded tapes, numbered in one yard increments. Sight tape ranges have been extended from 20 to 80 yards on faster bows.