Feature:1. Specification: Peephole size is 45degree and 37degree adjustable, peephole inner core sizes are 1 or 8in, 1 or 16in, 1 or 32in, 3 or 32in, 3 or 64in.2. Different Inner Core: If using 5 pins bow sight, you can choose 3 or 32 core If you want to see the whole frame, you can choose 1 or 8 core If single pin is used, you can choose 3 or 64 core The most commonly used core is 3 or 32 Minimum core size 1 or 32.3. CNC Aluminum Alloy: Archery hooded peep sight kit is made of aluminum alloy, CNC maching, which is durable and exquisite, has a long service life.4. Compound Bow Parts: Archery peep sight can help enhances your bow performance. Allow you to see your sight pins better on your hunting sight. Fit for compound bow.5. Lightweight: This aluminum alloy compound bow peep sight kit is lightweight, which can trim weight of your bow. Suitable for outdoor shooting or hunting games.Specification:Item Type: Archery Peep SightMaterial: Aluminum Alloy Gross Weight: 13g or 0.5ozPeephole Size: 45degree, 37degreeInner Core Size: 1 or 8in, 1 or 16in, 1 or 32in, 3 or 32in, 3 or 64in..Package List:1 x Archery Peep Sight5 x Inner Core1 x Wrench