Specialty Archery Clarifier 1/8 in. No. 1The Clarifier works with a bow scope and lens to help clear up the target, allowing you to pick out details at a distance. The 1 8 and smaller Clarifier works in all standard size Pro Series and Ultra Lite peep housings. NOTE: Not compatible with Podium Peep, PXS Peep, or PXLH Hunter Peep. The peep should be inserted in the string so the side with the verifier, clarifier, or aperture is on the side you look through. Protect your peep from dust, debris