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R-Tea Cup is a retractable paper cup. There is powder or flake tea covered with a piece of perforated gauze in the bottom of the cup. It has a variety of flavors, including green tea, black tea, rose tea, etc. When you use the cup, you just need to stretch it and put into some hot water, then you can get a cup of hot tea after a while. These cups can be compressed to save space during packaging or transport process. The material can be decomposed after using. It is easy to use and portable, particularly for travelers.