Search: Name of IKEA drinking glasses from 1999/2000

Hello

I have Ikea drinking glasses at home from 1999/2000. They hold about 3.5 dl and are classic in shape: round, slightly opening at the top, about 10 cm high, base diameter about 6 cm, diameter at the top about 8 cm.
Striking are the optical grooves that run parallel to the glass bottom at intervals of about 0.5 cm, i.e. horizontal.
The glass surface feels smooth, however, the grooves are inside the glass.

Does anyone know these glasses? I am looking for replacements for them.
What were they called?
Does anyone know if there is a way to get old IKEA glasses?

Thank you very much for the help and best regards

Hello,
these should be the Sisu glasses.
They are occasionally offered on eBay.