1)Made from food grade high quality silicone
2)Perfect for medium and large mugs and cups
3)Different designs & sizes can be chosen: Rabbit ear and snail.
4)Great for loose leaf and small tea leaves but nOT for very fine tea leaves
5)Flexible and heat resistant that will withstand boiling water
6)Microwaveable without strainer and dish washer safe
7)They are flexible, light, durable and easy to clean
8)Pattern and logo can be silk printed , embossed,debossed