FOOD GRADE SILICONE MATERIAL Our teapots are made of non toxic food grade silicone that will not cause any harm when in contact with food, leaves no aftertaste or unpleasant smell, and most importantly will not rust or discolor like a metal tea ball chain. The ultra-high temperature resistant tea infuser can withstand temperatures from -40 C to 250 C. CUTE & USER FRIENDLY DESIGN The silicone infuser contains many small holes, which can effectively filter the tea leaves and prevent the tea leaves from entering the water. Even if the shapes of the tea cups are different, they can all be hung on the wall of the cup. An interesting tea diffuser makes you fall in love with drinking tea. Easy to Use Just open the silicone strainer, put the tea, fruit tea, scented tea or anything you want to make, put the lid on, put it in the cup, and add water. Then wait for enjoyment. EASY TO CLEAN Our tea strainers can even be used in dishwashers. You can easily wash out the tea with water and can be reused many times after washing. CONVENIENT DESIGN It comes with a silicone mat to lay on the infuser to keep your countertop dry. It is also perfect for large cup cups until soaking tea and won't burn your finger by hot water when you take out the infusion as it comes with a long tail as a handle.