Product specifications:
Material: Carbon Outer Diameter: 7.8mm/0.307"
Inner Diameter: 6.2mm/0.244" Shaft length:24" 26" 28" 30"
Whole length: 25.5", 27.5", 29.5", 31.5"
Spine: 500 GPI: 13 (grain per inch) for the shaft Suit for: 25-50lbs compound, recruve and long bow

Shaft length: 26", whole arrow length: 27.5", outer diameter: 0.307" (7.8mm), inner diameter: 0.244" (6.2mm). Spine: 500. For draw weight 30-60 pounds recurve, compound, or long bows.
The shaft and fletching is fluorescent, easy to find. Save time, save money and keep you in a good mood.
Nocks are not fixed by glue. It can be adjustable for your bow. You can rotate the nock easily.
The O-Ring for locking the screw tip. Perfect for target practice & outdoor shooting. You can easily replace the tips as needed, such as broadheads.
6 extra nocks to you for . Designed to optimize safety for beginners and whoever new to hunting or target practice.