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we're going to propose a Band-Aid which compensates the defect such as getting tangled when using one hand or leaving an insignificant garbage when using only one of them.
It is called "2 step band" and it can be used much easier and faster with only 2 steps.
It is an eco-friendly band because it can reuse the original case by just purchasing a refill paper after using it.
Cheonan-si, South Korea
Min ji Yang,
Chang ho Yi,
Soong mi Park,