คุณลักษณะ

• This memorization pen has two types in one: green (medium square core) to learn by painting and pink (fine print) to learn by writing.
• Shaft plays back PP
• * The pink color of the memorization pen does not disappear with the memorization erase pen.
• * Once you erase with the memorization pen, you cannot overwrite with the green color of the memorization pen.