Features: 1. Premium ink, smooth writing, quick drying, no fading, no clogging, very durable. 2. Perfect for calligraphy practice, greeting card, art writing, art illustration, product design, DIY painting, etc. 3. Due to the particularity of friction and easy-to-rub ink, if it is not used for a long time, the tip of the pen is easy to dry, resulting in no ink. At this time, you only need to put the tip of the pen into the pen moisturizing device and moisten it for a few seconds to write normally. 4. This erasable pen ink accessory is a great gift for kids, students on Christmas, Thanksgiving, birthday and other festivals. 5. If you have any questions, please feel free to contact us. We will provide you with better products and services. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Size: 6.6*3.0cm Capacity: 25ml Package List: 1 x Thermal Erasable Ink (Not include pen) or 5 x Eraser or 5 x Pen Polisher