It can be safely used in dishwashers,microwaves and，refrigerators,more durable to stand the daily use.Product name: 6-Piece Porcelain Ceramic Coffee Tea Product material: CeramicProduct capacity: 6.8 oz/200ml Scope of application: coffee, tea, beverage, etc.Prompt:1. Please check the size and color before buying. Please note that due to different monitors, there may be slight color difference, please understand.2. The above data is for reference only. The size is measured manually, there are slight errors, please refer to the actual product, thank you.3. If you find any problems with our products, please feel free to contact us via email, we will solve this problem as soon as possible.4. Welcome to share and feedback, so that we can provide you with better products and services.5. Thank you for visiting my store, click to enter my store, There are many products for you to choose