Morning light. There are various types of correction tapes on the market. The most important factor when purchasing is that the width should be 4.2mm, because 4.2mm is exactly the line width of each line of computer printing, and it is not easy to accidentally correct other lines during correction. The characters can be corrected in one go. The width of some correction tapes is 6mm, which is not suitable for computer files. In addition, you should also pay attention to the material of the correction tape. It is best to choose one with high coverage, non-toxicity and sufficient thickness. Even gel pen or ink writing can be easily covered and it will be OK once.