31.5" Carbon Hunting Arrows Yellow Vanes 8mm Camo Style Shaft with Replaceable Screw-in Tips for Archery Compound & Recurve Bow Crossbow Outdoor Target Practice Hunting Gift, Pack of 12 Length: 80cm/31.5 inches (allow 1-2cm error) Shaft Diameter: 8mm Vane length: 7.6cm/3 inches Arrow weight: about 30g/1pc For draw weight 30-50 pounds traditional archery recurve bow and longbow