Specialty 1/8" Aperture W/1 Lens Used to make the target picture more clear For use with sights or target scopes with a magnified lens No. 1 Clarifier for use with 2-4X scope, No. 2 Clarifier for use with 4-6X scope, No. 3 Clarifier for use with 6-8X scope For use in all 1/8" Specialty peeps (and 1/4" peep with reducer)