ARCHERY SHARLY 31 inch Carbon Targeting Practice Arrows,5" Black Red Natural Feather Fletching Arrows with Removable Screw-in Tips for Recurve Traditional Long Bow Length: 31inch/79cm, spine: 500, carbon standard arrows for recurve, traditional and long bow, suitable for draw weight of 35-50lbs bows. Feather Length: 13cm/5inch natural feathers, arrows with feather fletching 2 red 1 black peltate shape feathers. Inner diameter: 6.2mm, outer diameter: 7.6mm, high grade carbon shaft, durable for longer use. Archery arrows material: Carbon fiber, carbon arrows are of good quality and fly straight, stick in the target well, make flight always pointed the right way. Arrowhead: With 100 grain replaceable practice broadheads, perfect for target practice training & beginners.