ISPORT 31" Aluminum Arrows Hunting Archery Practice Arrows for Compound Bow with Steel Points and 4-inch Vanes 12-Pack Alloy aluminum arrow is fully assembled with an insert and 4-inch right-wing parabolic vanes(2 blue 1 white color) Items specifications: 31-inch Length,Diameter:8.8mm. high quality Aluminum standard target practice arrows for compound bows The arrow is fit For draw weight of up to 55 pounds bows Comes in a 12-pack of black arrows