[Product Description] ・This is a pair of rock cups from Touetsu Kiln, which specializes in gold and silver decoration. 　The round shape fits perfectly in your hand. 　It can be used for any kind of alcohol, such as shochu, sake, and whiskey. ・Perfect for sake, shochu, fruit liquors like umeshu (plum wine), 　and especially for enjoying drinks like whiskey on the rocks. ・Not microwave safe. ・Size: Diameter 8cm, Height 9cm, Capacity 400ml ・I received this as a gift but never had the opportunity to use it, 　so I have kept it in storage. ・Although it is unused, there may be some age-related deterioration such as fading due to long-term storage, so please refrain from purchasing if you are sensitive to this.