I've just noticed a small hole in the item I am about to send off WWYD?

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It a pair of trousers and there is a pin sized hol under the bottom area at eh back. I didn't see it before . Should I contact the bidder and tell them and ask them what they'd like to do and poss refund their money?
Have you had any experience of this?

Yes I would tell seller or you will get dubious feed back .if its only pin sized they'll prob say send it anyway

This has happened to me. I sold a boy's coat then noticed a hole. I contacted buyer to tell them and offered to refund. They said to send it anyway.

I've also sold a DVD and then realised it was region 1 (we'd bought on holiday). That time I refunded money.

Much better to tell them. I've been warned of last minute tiny flaws as a buyer a couple of times - I kept both items.