Kokuyo Memorization Pen of "Checkle" PM-M120-1P (Pack 10)

Checkered Orange Memorization Pens, Set of 10 ●This product combines a green pen, which can be hidden by covering it with a red sheet, and an orange pen, which hides the writing itself. Both pens are hidden by covering them with a red sheet, allowing for efficient memorization. ●The green memorization pen covers text in textbooks and reference books by covering it with a red sheet. The green ink does not bleed through, reducing the frustration of getting smudges on the back of the page. Once you've memorized something, you can quickly erase it with the dedicated eraser pen. ●The orange pen can hide writing in notebooks and workbooks by covering them with a red sheet. Using this orange pen to mark important points when taking notes makes reviewing before a test easy. *The orange memorization pen's orange color cannot be erased with the memorization eraser pen. *Once erased with the memorization eraser pen, it cannot be overwritten with the green memorization pen. ●Water-based dye ink ●Bag external dimensions: 40mm wide x 200mm high ●External dimensions: Shaft diameter φ13mm x length 142mm ●Material: Shaft: R-PP, Cap and tip: PP ●Ventilated cap ●Specifications: Medium-sized square tip - green / Fine tip - orange