헤이냐
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I recommend the Mcqueen New York Waterproof Pencil Gel Liner. It is a great value product that applies smoothly. It is a good item to carry around without any hassle.
However, there are some downsides. It is quite soft, so the lead often gets smudging when sharpening, and the durability is on the weaker side. Still, it is decent for the price, so I am satisfied and have been using it continuously.