Lightweight, dependable and highly visible, with a shot-activated switch that won’t turn off until reset by the archer. Installation requires no glue or magnets. Battery lasts up to 20 hours. Fits H-Nock arrows, such as the Cabela’s Outfitter, Easton Bloodline and Easton Carbon Excel. Per 3. Weight: 20 gr. Color: Red, Green, Blue, Pink.