The CBE Engage Hybrid Bow Sight features frustration-Free pin adjustments. Engage and move just one pin at a time. Loosen hex screw to engage the chosen pin. Turn the knob to make micro adjustments to individual pins. Armed Guard Fiber Management System protects the fibers every step of the way, from block to pin. And, there is now 12 inches of fiber for brighter pins! Quad Track – four-track stability adjustment system eliminates rocking and rattling. Our machined Rapid Drive elevation adjustment system is the fastest high-precision adjustment available – one turn = 1.5" of travel. An ergonomic knob makes adjustments easy.