If you were a tea lover, the yellow submarine should be a great tea bag for you. This small gadget shaped like a submrine. Put tea into the submarine, then dunk it in the cup full of hor water, after a while, a cup of fresh tea will be ready for you.
The funny Tea Sub is made with silicone. I believe that material is not harmful to us. but there is no word about its price at Monkrybus.