Fantastic spare parts from an amazing Company, Felco.
Felco is a terrific company. Their products are mind-blowing. I bought my pruners 23 years ago. The only thing I've needed to buy, this year, is a set of springs. I bought the originals in New Zealand in 2001, the springs were bought in and delivered from Australia. I live in Costa Rica!
I bought these to replace the spring in my German made secateurs and they fit perfectly The spring action is nice and smooth. The real test will be how they perform over the years but so far after a week, all is good.