Gold Tip Superfly Crossbow Bolts 20in 350fps 6 Ct Black/Blue. Specifications for Gold Tip Superfly Crossbow Bolts: Manufacturer: Gold Tip Color: Blue Black Fabric/Material: Carbon Archery Application: Archery Features of Gold Tip Superfly Bolts: +/- .001" straightness tolerance +/- .5 grain weight tolerance Designed for crossbows shooting 350+ fps Pure carbon no fillers Super-stiff spine Package Contents: Gold Tip Superfly Bolts Gold Tip SF20A46: Superfly Crossbow Bolts 20in 350fps 6 Ct Black/Blue