[Packaging content] You will get a retractable rubber rubbing and replacement core set, including 2 telescopic rubber rubbings and 10 telescopic erasers, a total of 12; enough number will meet your needs. [Pen design] Pen-style rubber rubbing adopts a humanized pen shape.Click on the top of the pen to display the rubber rubbing you want to use, and then click again to adjust the length of the rubber rubbing.Not only easy to hold, but also easy to carry to other places. [Detail removal] These scalable mechanical rubber pens have small and soft rubber heads, so some details can be dealt with.And you can easily and clean the wrong words or lines without wear, dyeing or tearing paper. [Reliable materials] These automatic pencil rubber cores are made of plastic. The rubber rubbing is made of high-quality rubber. It is not only light and flexible, but also has fewer rubber chips, reliable, and can be used for a long time. [Wide application] These precision scratching can be used for office, schools, conferences, families, parties, activities, etc.They are also very suitable for children, students and teachers to learn and work as practical and exquisite gifts. Colour:B:Gray Material:Plastic Package Contents: 1set * retractable eraser Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.