"Count on accuracy, shot after shot, with the simple and trustworthy targeting performance of the Redline Bowhunting RL-4 Four-Pin Bow Sight. An enclosed hub and light feeds the fiber optics lighting up the sight's 4 ultra-bright .019"" fiber optic pins to help them stand out in all conditions. A tool-free locking adjustment knob and precision-adjustment windage knob help keep bowhunters on target in changing conditions. An integrated bubble level helps archers properly align every shot quickly for improved accuracy. 1st- and 2nd-axis adjustment boost accuracy on longer shots. 4 mounting holes for added adjustability and flexibility. Weight: 6.2 oz. Accurate, easy-to-use 4-pin bow sight from Redline Bright .019"" fiber optic pins Enclosed hub and included light to bright fiber optics Built-in bubble level 1st- and 2nd-axis adjustment Tool-free locking adjustment knob Precision-adjustment windage knob 4 mounting holes - adjustability and flexibility"