I believe that the majority of students are required.There is a pencil bag.Because if you don't, you will remove the pen. Pencil or eraser to match? Some may be removed in a backpack, but that it was not convenient!
I believe that students need the most , that is. Pencil bag , because if you take a pen or pencil eraser to it where someone may be in the bag. But it's not easy
I believe that most students need , that is. Pencil bag if no you will get a pen, pencil, eraser, or where someone might เอาไว้ในกระเป๋า backpack, but that it's inconvenient .