Correction tape is one of the indispensable aids in day-to-day school life, and whether it can work smoothly will affect students' performance and mood to some extent. The goal set for this design is to offer students a better substitution for convenient, efficient, and smooth tape application.Most correction tapes on the market are typically designed with a double-spool structure and a large size, which will eat a lot space when carried and is hard to fit in a pencil case. And these correction tapes with a large size are rather uncomfortable for younger students to grip. To solve these problems, this correction tape takes a strong departure from the conventional designs on the market. Featuring a single-spool structure and a slim pen-shaped shell, it is thus as compact, comfortable to hold, and easy to carry as a gel pen. To simplify tape application, its tape head has been innovatively optimized with a one-piece telescopic cover design. This protective cover can be extended with a gentle push, and be retracted with a light pull. This improvement completely eliminates the worries of the cover loose from the tape head or missing, effectively protecting the tape head from breakage and stain, whilst also avoiding smearing other items when placed in a pencil case or a bag.