Not quite as durable as some of the other arrows I've bought.
I have 6 dozen of these arrows, they're not as durable as some others I've bought on here, but I'm shooting 55lb and it's 3D where they have broken. So it's basically just hard use as opposed to the arrows being bad. Great for target shooting, accurate and consistent, but don't expect them to survive any harsh treatment.
Still, it'll depend on what you're using them for, but for me they're too fragile, and I'm rather an aggressive shooter.