Fiskur Archery 30" Carbon Fiber Arrows 340 Spine with replaceable Tip & Nock for Compound & Recurve Bows FIBERGLASS ARROWS for target practice 31 INCH ARROWS with strong, lightweight shafts COLORED PLASTIC FLETCHING & nock rounded stainless steel tip DIAMETER: 8mm. For draw weight 25-45 pounds bows GREAT DURABILITY for extended use of target practice