I recently bought a mid century sewing box from Craigslist, and I was amazed to find a pair of Kai pinking shears as well as Gingher pinking shears and yet another pair, Fiskar pinking shears. I wish at least a couple of them were regular sewing shears, but wow! How did that happen? I don't know how old the Kais are, but they say only "Kai Japan" - no number on the blade. They are definitely not as old as the sewing kit they were in, but may be 20 years or more. Kai has been in business for over 100 years according to their website. The Kai pinkers cut beautifully. I don't think you can go wrong with Kais.