Gold Tip Ballistic Pro Bolts 22 in. 3.5 in. Vanes 6 pk.. 001 and weight tolerance of +-0.5 grains. Shafts weigh 8.5 GPI. Available in 22 length only. Includes brass inserts (loose) moon nocks and flat nocks. Factory fletched with 3.5 in. vanes. Finished weight of 431 gr. with 100 gr. point. Specifications for Gold Tip Ballistic Pro Bolts: Manufacturer: Gold Tip Quantity: 6 Length: 22 in Included Accessories: Standard Fletching: 3.5 in Vanes Archery Application: Hunting Features of Gold Tip Ballistic Pro Bolts: GPI - 8.5 Length: 22" Straightness tolerance (+/-.1) Outer Diameter: .343" Inner Diameter: .3" Package Contents: Gold Tip Ballistic Pro Bolts Half-Moon Nock Flat Nock 11 gr Brass insert Pro version of the Gold Tip Ballistic bolt features a straightness tolerance of +-.001 and weight tolerance of +-0.5 grains. Shafts weigh 8.5 GPI. Available in 22 length only. Includes brass inserts (loose) moon nocks and flat nocks. Factory fletched with 3.5 in. vanes. Finished weight of 431 gr. with 100 gr. point.