I’ve been looking for a climbing harness for G for christmas and the UK sites are all around £50 but there’s a handful of sites that seem to do the same thing for more like £35
Dunno specifics but these sites seem legit. I’ve posted a few things recently from Sweden to my aunt and it’s taken 5-7 days so not loads. Customs charges from the EU are a crapshoot - can totally depend, it seems. It’s near impossible to find out what the charges will be and I think that’s intentional tbh. Often you don’t find out until you get the bill. Also, returns could be a nightmare if you have to return for whatever reason, you could get stung again.
Ultimately it would probably be fine tbh, but if you want certainty I’d stick with the higher prices in the UK and take the hit for that certainty.
At work we’ve had some nightmares importing materials post Brexit. If it was a fiver I’d say go for it and take a chance - if you get hit with customs duty your £35 piece of kit will soon be £50 like the UK sellers.