Depends on what they are.
See the ebay policy on REstricted Adult items
If they are not allowed then you can report
There is a report this listing on every listing page part way down on the right of the page.
There may be items that are restricted on ebay.co.uk but not on other ebay sites as different countries have different policies.
https://www.ebay.co.uk/help/policies/prohibited-restricted-items/adult-items-policy?id=4278
_____________________
We are just ordinary members trying to help.