I bought this for my husband’s birthday. The first one arrived and it was very small for a man, (15mm) it wasn’t until then that I realised that they did different sizes. I was offered an exchange, but in the end kept it for myself, and ordered the 20mm. When it arrived it had a 16” chain, instead of the requested 18”. Stevie popped the correct chain in the post, with a returns label, it was all sorted within 3 days. So, to sum it up, first class customer service, 5* quality product, and one happy husband, would I shop here again? Absolutely 100%.