CUPID is a professional archery equipment manufacturer dedicated to creating a perfect archery experience for consumers. The 7.8mm real feather carbon arrow is one of the high cost performance products exclusively designed by CUPID . Product Details: Shaft Material: Carbon Feather Material: Turkey Feather Shaft Length:30" Full Length: 31.5" Outer Diameter: 7.8mm Spine: 500 Weight: 33g Draw Weight: 30-50lbs Removable Tips Condition: New item Package includes :12 pieces of carbon arrows Note: 1. Please do not shot at any hard things, like concrete wall or any hard substances. 2.When practice, players must wear protective gear and take some protective measures. Minors should use bows and arrows under the guardianship of their parents.