This NuFletch Ignitor Lighted Nocks Multi Pack contains inserts to fit GT, S, H, and X nocks. There are now many lighted nocks on the market and they are not all created equal. Super bright, easy to install & indexable. The removable LED is shot activated, easy to turn off and eliminates the need for a hole in the nock, greatly increasing the durability and reliability of nocks. Installation is Easy: Bond the insert to fit your arrow shaft into the arrow using common insert glue.Place the Ultra LED in Nock & Slide nock into insert.Nocks remain fully index-able! The Ultra LED lightsticks are removable & replaceable!:When it is time to replace the LED lights, simply order a pack of replacement lights. Also, LEDs can be removed during practice to conserve battery life. •Your Ignitor pack contains 3 complete lighted nocks that fit the 4 most common nock sizes (GT, S, H, and X) inside diameters• Red LED provides up to 15 hours of continuous light• Green LED provides up to 50 hours of continuous light
