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We usually take a nap or have a cup of tea when we are going to picnic. However, the common mat on the market is too flat to lie on it and only have single function. If we want to lie comfortably on the mat, we probably have to bring a pillow. But it may be a burden to us. Through squeezing the mat, air can be concentrated to certain area for use as a pillow or other uses (cushion, tea table, coffee table ,etc.). The most important is that we can carry less belongings than before and delightfully enjoy the picnic.
Chung Hua University