1. 5 Piece Set: You will receive 5 rolls of correction rollers with blue bowls. Each roll has a core length of 30 m, totaling 150 meters. The core width is 5 mm. It has a large capacity for your use and helps in correcting handwriting errors. 2. Material: The outer shell of the correction tape is made of plastic, and the flexible core of the transparent film tape is made of PET, which is stable, tearresistant, safe, odorless, and offers coverage and adhesion. Very suitable for students and office workers. 3. Gear Design: Internal gear design ensures smooth rolling without jamming, making it easy to use. The correction tapes are neatly arranged on the spool. The gears interlock tightly and do not tangle. It is effortless to release. Simply slide the correction roller over the area to be erased to make small mistakes disappear. 4. Comfortable and Fast: The sticky rolling tip provides good coverage, effectively concealing handwriting from ballpoint pens, fountain pens, etc. It is suitable for smooth and flat paper, requiring no drying time. Easy, fast, and smooth for writing.