Specialty Archery PXL Hunter Peep Aperture 3/16 in. Non-glare material;Available in three sizes: 1/4"", 3/16"", 5/32"";Aperture insert screws into the PXL Hunter Peep;Designed for ultimate accuracy;Tool-less aperture installation/removaltable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 1600 Product Group Code: 1600A Pack Size: 1 Inactive: No