There is no single item limit for your general contents. Everything is covered up to your total contents sum insured, so you don’t need to list individual items.
For valuables (Jewellery, watches, art, collections etc), there is a single item limit of £25,000, which is intentionally high so you don’t have to declare every item individually!
Any valuable item worth more than £25,000 must be declared separately to ensure it is fully covered. This applies only to valuables, not your general contents.