Spin roller pen / Pen

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"