Vibram Replacement Soles - Set of 2 (White & Black)

Vibram non-slip sole,
White 4014
Black 4014

- Color: White, Black
- Material: Rubber
- Design: Grooved, Non-slip
- Brand: Vibram

Thank you for looking.
These soles were purchased 2 years ago. The white ones have started to yellow. How about using them for sole replacement on Red Wing or Birkenstock sandals?
Please refrain from immediate purchases.
All questions are welcome.
No claims, no returns (NCNR).
Sold as a set of 4.