Very few people have is read or seen determined, which is the corkscrew not suitable for plastic corks.
Back on the cardboard, in small print, is much nonsense and in the last sentence is then "not suitable for plastic cork"
But since nearly every 2nd bottle is sold with plastic corks today you can throw away this Corkscrew equal or get a 2nd for plastic corks.
And that part is even sold to date again. Since the manufacturer has thought it right.
Würd me times interest from other time if they have so get a bottle with plastic cork open.