They are slightly larger than axis so I would say somewhere in between. Great accurate arrow but Im starting to question the durability. They have kind of thin walls and since they are made of carbon and aluminum each layer is very thin. I have had to throw away two in the last couple weeks because of arrow impacts.(I dont shoot groups under 40) The aluminum would dent in causing a soft splintered spot in the carbon. When I get new arrows I might go back to axis, theyre tougher, cheaper and still have the GPI Im looking for.