I have a set of the old fashioned balance scales, my mum got jealous and has now bought a set for herself. The problem is the scales only come with imperial weights and my Mum would like some metric weights too. I have both, the imperial came with the scales and I picked up the metric at an iron mongers in York. Unfortunately we don't have any iron mongers near us and a trip to York isn't really practical (I was on holiday when I got mine). Does anyone know of any national chains that sell sets of metric weights of anywhere else that I might be able to find some. In the meantime she is using metric products to give the balance, mainly chocolate because it comes in a range of weights and is easy to stack - I think this is just an excuse to buy lots of chocolate though.