The exclusive yardage dial allows rapid adjustment, right down to the yard. Included scales are numbered from 20 to 60 yds. in 1-yd. increments for unmatched precision. Once the bow is sighted in at 20 and 60 yds., just attach the customized yardage scale. Tool-less microwindage adjustment. Yellow sight ring for rapid target acquisition. Made of CNC-machined aluminum. 1-5/8" sight housing. 3 ft. of .019"-dia. fiber-optic material. Sights include damper. Manufacturer's lifetime warranty.