The erasable pen is perfect for use in school, as it has a kind of eraser on the top of the pen, it is easy to erase what you have written. Sometimes you can't help but forget or lose the eraser, then the pen is needed to correct your mistakes. The pens have an elegant design with precise tips, which makes it easy to write with them. The ink is quick-drying and is sensitive to temperature changes, so it should not be used if you are going to sign important documents. The set consists of 4 pens of different colors, each pen represents an animal that the user of the product will certainly appreciate. The pens are extremely good for taking notes as you can easily remove a simple mistake with the removable top. The animals on the pens are a pig, a panda, a mouse and a teddy bear, which will encourage the user to start writing and drawing. So you learn through play! The pens have a blue ink cartridge. This is a good solution for children who used to write with a pen in class and now need to learn to use a pen. The thickness of the writing line is 0.35 millimeters. An erasable pen is definitely a good solution because it does not leave unsightly traces. Specifications: Color: Gray, White, Pink and Navy Blue Writing color: Blue Writing thickness: 0.35mm Dimensions: See picture Package weight: 39g Pen weight: 8g