This is an octagonal cup and saucer set. The cup's longest diameter is about 7.5cm, and the base's longest diameter is about 4cm. The saucer's longest diameter is 15cm and shortest diameter is 14cm. It's a beautiful item, but it may have some minor scratches due to being stored in a cupboard for many years. Please refrain from purchasing if you are concerned. There were originally 3 sets, but another one has been found, so I will sell all 4 sets for the same price. Price reduced.