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Many people use handpaper,especially in Asian countries.We need it to wipe our lips after dinner and need it to wipe snivel when we get cold.If we do not wipe our lips or snivel clean,it will result in embarrassment.But how do we know whether our lips or nose have been cleaned up?This is really a problem!XXXXXX paint a layer of reflective coating in the back of the existing packaging,we just pick up the handpaper to face the reflective coating and see whether it is clean or not after we using the handpaper,It can avoid embarrassment in our daily life.
Xuan Teng Huijun Chen