"Black & Gray Box" vs. "Yellow Box" Feather Razor Blades

[Cal]

And here's a link to a six years younger thread on the same subject:

The Yellow-Feather/Black-Feather Controversy SOLVED.

 

[eaglesgift]

Hi there guys!
The feather black box is made in Thailand, Feather company has a factory there.
Only the yellow one are currently made in Japan!
This information come from a friend who lives in Thailand!
So the quality isn't the same, the black box has lower quality than the yellow one.
Thanks for reading this information!
If you have questions don't hesitate to contact me!

I have a question: Why have you posted this erroneous information in two different threads? The Feather blades sold in Thailand are made in Japan. There is no Feather factory in Thailand.

 

[Mouser]

I have a question: Why have you posted this erroneous information in two different threads? The Feather blades sold in Thailand are made in Japan. There is no Feather factory in Thailand.

I think I can make a good guess.