@Edent those look cool. They do ship to the UK, but charge Β£142 for the pleasure π€―
If you can't find them here, they may be a bit niche, then the best option may be to have somebody in the US send them over to you.
@Edent they do look like a cool product, but it's one of those things I'd like to try first. It's a huge investment to find out when you try them on "oh this isn't good"