The nodes on these shafts have been flattened. These shafts are ready for your next arrow making project. Standard size for these shafts is 11-32 to 23/64, but as it is a pure natural product, the diameter is never certain, nor the same. we often have longer shafts for Kyudo archery or Manchu arrows. send us an email to check if your shafts are available in 36-40 inch lengths.