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When it rains,it will always make your shoes wet, and it’s really uncomfortable .For this reason we analyze the same kind of products on the market and find that either having too big volume or just hard to carry ; so we turn it into a smaller typle like and “ONIGIRI”to make it available to take, besides, it can be recharged like a mobile power bank.
MING CHUAN UNIVERSITY
Taoyuan City, Taiwan