Size: 4"(W)*4"(H)(with cover and Saucer). Capacity:200ml/6.7 fl oz Material:Porcelain It's the nice size to brew small yet continuous steeps of loose leaf tea Nice craftsmanship.Glazed smooth.Great to hold Tea cup with Saucer Set,Exquisite handiwork, glazed smooth ECO-friendly.How to use the gaiwan:When using a bowl, the water should not be too full (cover the lid and the water will not overflow). When pouring water, Use your fingers against the Teacup mouth edge(Teacup mouth is wider,it is good for Prevent burns and pour tea better) to ensure that the water does not burn your fingers. Then tilt the lid slightly and use your finger against the top of the lid to control the flow of water. Hoping it is helpful to you.It's a nice gift to your family or friends who loves tea or interested in Chinese Tea Culture.