• This is a traditional tea mortar with an integrated polishing bowl and polishing rod, especially optimized for grinding matcha in tea ceremony. The Lauite material is durable and maintains uniform powder fineness for an authentic tea ceremony experience at home or in the classroom • Designed with an emphasis on cultural heritage and educational values, it can also be used as a teaching tool for kindergarten or home. Children can learn the basics of tea ceremony through the movement of the polishing bowl and the polishing rod, and deepen their understanding of traditional crafts and crafting techniques • As a multi-functional grinding bowl, it can be used to grind different hard and soft materials as well as matcha, spices, dried tea leaves, herbs and grains. The sanding rod has a non-slip wooden handle that is lightweight and easy to grip, making it great for cooking and crafting purposes besides tea ceremonies • The material is non-toxic and odorless, natural blue stone, and the inner surface of the polishing bowl is crushed efficiently. It is also safe to use fine powders generated by friction on the grinding rod and mortar, so you can use it with confidence from tea ceremonies to toddlers' dietary practice • Since it is hand grinding, there is no need for a power supply. The heavy feel of the grinding bowl and the natural rotation of the grinding rod embody the spirit of the tea ceremony. The quiet grinding sound and texture will enhance your daily tea time into a special ritual