Qi Ming Wen FangChinese Calligraphy Inkstone, Ink Stone with Water Circle Prevent Dry, Natural Stone Ink Dish with Lid for Sumi Calligraphy, Dia. 4.9"

After I use this, my ink able to keep wet inside all the time. Please remember, when you add water inside the inkstone, make sure you use the boiled water not the tap water.