How to use these plastic bottle-caps?

[Antti]

Hi all!
How should I use these caps :https://www.beerewine.it/tappi-alettati-bianchi-confez-100-pezzi/

I could not find any instructions, do I need a "standing" capper to this?

I got some 750ml bottles that have 29mm opening for 29mm crown caps.
I got these plastic caps (in the link) for free with the bottles, and I don't have standing capper nor 29mm caps...
I thought to use these caps, but it feels that I'd need something else than a hammer...

How should one open these?

Thank you.

 

[JohnSand]

I don't speak Italian, but it looks like a cork to me. You can buy devices to cork bottles, but I would try a bench capper first.

 

[DuncB]

The 750ml bottles have a 29mm diameter across the top. Not a 29 mm hole.
Those plastic " corks " would need a metal wire cage to hold them in.
I just use 29mm crown caps and a suitable capper with a 29mm bell.
Normal beer bottle crown caps are smaller so don't fit the champagne bottles and need a bigger bell.

 

[Antti]

Thanks DuncB and John! I think that there is no way around it I need to get myself a bench-capper with 29mm bell...