TRUGLO CENTRA PEEP XTREME: The TruGlo Centra Peep Xtreme is a premium peep sight designed for archery and bow hunting. One of the keys to accuracy with a bow and arrow is consistency - you need to be able to look through your sight the same way every time. Using the peep sight takes a lot of the guesswork out. A peep is a device that sits in your bowstring - to install it, you're going to separate the strands and insert the peep sight in the middle - you may need a bow press or ask another hunter to help you. It is crafted of high-quality materials to provide rugged durability and dependable use. It is super compatible and suits any bow. Comes in 1/8' and 3/16' diameter options. So don't let anything stand between you and success - choose TruGlo for your hunting needs! SPECS & FEATURES: - Smaller, lightweight design; - Tubing for proper positioning; - 1/8 in. and 3/16 in. Peep diameter options; - Matte black finish for reduced glare.