TruGlo Fixed Bracket Pendulum Sight. The most advanced tree sight available. Automatically compensates for distances up to 35 yards. Pendulum can be locked in place for ground shooting. Extra, extra-long protected, wrapped fibers. Aperature has a 1.8" inner diameter. Circular field of view. Glow-in-the-dark shooter's ring helps align peep sight. Level with two vertical bars. Level is illuminated by luminescent shooter's ring. Adjustable for left or right handed shooters. Extremely quiet. CNC machined Ultra-light and compact. This sight features a fixed bracket with a green .029 diamter pin with light.