Precision machined brass rack and pinion delivers smooth operation. Wheel forward design is ideal for mounting one-piece quivers. Fully integrated 2nd and 3rd axis adjustment. Interchangeable wheel allow for quick changes between multiple arrow or draw weight combinations. 2.1â?쳌 of vertical travel adjustment. Sight tape magnifier allows for adjustment to the 1/4 yard. â??Blind 20â?쳌 feature allows for fast, no look return to your most common predetermined distance. 2 Inch housing with 4.5 ft. of fiber optic. Accepts Lens Kit 35 and Blue Burst sight light (both sold separately).