Not a bad choice of springs, I've had a lot of compression springs and a few extension springs, the choice of compression springs was actually pretty good, I got some pretty good heavy duty ones will be useful. I was hoping for torsion bar springs but after reading the reviews I wasn't expecting much. However, I also received a large number of bent, damaged and broken springs. I have 102 feathers, that's 7 oz. Weight, so mileage may vary. 23 of them were bent or broken. Some of them can be saved, but still a fifth of them are bad.