Need a new hinge spring. No optician or anyone else was willing or able to repair a pair of Morel-Oga glasses with very expensive lenses. Compared to the original, the design was very close, the plastic arms felt more flexible, which isn't necessarily a bad thing, but an observation. Maybe it was a fake. The original's nib was made using a different method of making a replacement pair, not as sophisticated but excellent for the job. I bought the whole pair for a feather. Will never buy a pair of Morel Oga again as they turn away their customers.