The CBE TEK-Hybrid Pro (Single Pin) (Smart Mount) is a fully machine aluminum constructed bow sight. The TEK-Hybrid Pro features an Armed Guard Fiber Management System for even brighter pins and better protection. This sight also features a micro adjust windage unit with laser engraved markings (right and left) and indicator window. Ergonomic, oversized 4-point Rapid Drive knob for a sure, easy grip. Stay Tight design Delrin tracks assure sight stays tight, quiet, and rattle free, even over time; adjustable tension.