ᐅ Ikea Godmorgon/Odensvik: Where can I get replacement plugs for them?

For our Odensvik double sink, I urgently need new stoppers because the old ones have become very unattractive. Unfortunately, I can’t order them from Ikea, even though there is an article number for them: 130502.

This stopper comes in matte and glossy finishes. I would need 2 matte and 1 glossy, but I’m willing to take whatever I can get 🙂 Who can help me with this?

Thank you very much in advance.