Material: Pen eraser is made of natural rubber material, non-toxic and environmentally friendly, it is an indispensable helper for your office and school SIZE: Ink eraser is medium size, comfortable to hold and portable. Fine sand particles, reduce the damage to the paper Multifunctional: White rubber tip is used to erase pencils, clean and no trace. Gray sand head for erasing pens, pens, ballpoint pens, etc. Function: Pen eraser is used to erase pencils, pens, neutral pens, ballpoint pens, help you reduce the workload. Will not damage the paper Package: 4 pcs ink eraser, size: 66x14x10mm, sufficient quantity, can be used for a very long time