Truglo Rite-Site XS bow sight the unique pin design of the Truglo Rite-Site XS bow sight increases brightness. The large circular field of view aperture has a 2-inch inner diameter. The ultra-strong lightweight pin guard glow-in-the-dark shooter's ring helps align peep sight. Level with two vertical bars CNC machined. Adjustable for left- and right-handed shooters with markings for elevation and windage. Adjustable rheostat light is included. Features: - the large circular field of view aperture has a 2 -inch inner diameter - the ultra-strong lightweight pin guard glow in the dark shooter's ring helps align peep - level with two vertical bars CNC machined - adjustable rheostat light is included.