I was very very disappointed with these arrows.
I ordered several of these for the girl scout camp I work at (teach archery) and I had to pull off these arrows off the range almost as soon as I set them out because the kids were getting rather large fiberglass splinters from simply picking up the arrows. 1 star

That says it all. Easily shattered at practice with any force. 2 stars

I don't understand the poor reviews on these arrows. My son & I both shoot English style 6 foot longbows, 30-35 pound pull. These arrows work just fine, no splinters, no broken arrows. Keep in mind that these come with veins not feather fletching, so if you're using traditional bows (without a whisker biscuit) you may need to replace the veins with feathers. I'm not sure why no one seems to make fiberglass arrows with feathers. 4 stars