Hha bow sight 3000 optimizer lite 1 5/8" housing.019 pin FEATURES-Sight in at 20 & 60 yards and you're dialed in from 20 to 80,in 5 yard increments-Tool-free adjustments-Fully protected fiber optics-Sight Housing: 1 5/8"-Fiber Length:2 ft.-Pin Size: .019 Other Features: Single pin adjustable sight, armour pin technology,r.D.S.Technology provides yardage tape in 5 yard increments with quick turn of the dial weighs 8oz,1 5/8" housing,2' of.019 fiber optic,will not accept light or lens kit