Feature: 1. Specification: Peephole size is 45degree and 37degree adjustable, peephole inner core sizes are 1/8in, 1/16in, 1/32in, 3/32in, 3/64in. 2. Different Inner Core: If using 5 pins bow sight, you can choose 3/32 core; If you want to see the whole frame, you can choose 1/8 core; If single pin is used, you can choose 3/64 core; The most commonly used core is 3/32; Minimum core size 1/32. 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 Sight Material: Aluminum Alloy Gross Weight: 13g / 0.5oz Peephole Size: 45degree, 37degree Inner Core Size: 1/8in, 1/16in, 1/32in, 3/32in, 3/64in. . Package List: 1 x Archery Peep Sight5 x Inner Core1 x Wrench