Best-selling 31" Adult Hunting/targeting Practice Carbon Arrows with Red and White 3" Plastic Vanes and Replacement Screw-in Field Point-6pack Black carbon standard targeting practice arrows for traditional bow,recurve bow and longbow. Total Length:79/31",Shaft diameter:0.8cm/5/16".Fletching with 2 red 1 white 3'' vanes plastic feathers. Spine:450,For draw weight of up to 60 pounds bows 100 grain nickel-plated stainless steel bullet tip perfect for hunting/targeting practice. Have good performance,low hand shock with good speed.Extraordinary durability for extended use.