Archery accuracy is a Dead - on Range Finder. SAVE! Based on tried-and-true practice of "bracketing"! This principal works by measuring the animal from belly to back. Bright fiber-optic pins are used to bracket the animal to estimate a distance. Not a laser range finder, this unit mounts to the pin guard on your sight, so it can be used hands-free at full draw. The high-visibility, fiber-optic ranging pins can be calibrated and matched to your bow"s sight pins for quick, reliable shot-distance calculations. You"ll hardly notice this accurate Range Finder at only 1/4" w. x 2" l. Sight not included. Order up precision today! WARNING: This item cannot be shipped to Canada. Please check your State, County and City laws for restrictions before ordering this product. Dead-on Range Finder