The Pro Series Peep is a sculpted to trim weight and boost bow performance. The hooded peep is 25% lighter on your string than the original Hooded Super Peep housing. This results in increased arrow speed. The hooded peep helps reduce glare on clarifier and verifier lenses. The Peep opening is 3/16 in and accepts all Specialty Archery 1/8 in apertures, clarifiers that sharpen target faces, and verifiers that sharpen pins.