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You have ever made a mistake to tear your notes that an important part of the sheet. You can use "Spin Roller Pen" on the sheet when you would like to tear your reference shape of the memo "Spin Roller Pen" makes the dotted line on sheet easily. It is added a circle knife on the top of the pen. This is predicted that a lot of people use it the office, school and home ect. Use "Spin Roller Pen"
Keimyung University
Daegu, South Korea
Youngnam University
Daegu, South Korea
Eunji.Jeong (Keimyung University)
Daegu, South Korea
Youngwon.Jeon (Keimyung University)
Daegu, South Korea
keimyung University
Daegu, South Korea
Youngnam University
Daegu, South Korea