Features: Water Erasable Pen: This water soluble pen uses a water-soluble disappearing ink to making your mark visible only when you need to see them, very portable. Multiple Colors: There are 4 colors of water-based pens, including: black, red, green, and blue; practical and interesting. Use water can make the scratch quickly fade. Health and Safety: This water-based pen is made of safe materials, non-irritating to the human body, non-toxic, non-odor, and without worrying about harming. Portable: This water-based pen can write on the surfaces of the fabric, such as cross-stitches, handicrafts, etc. Just spray a little clean water on them and they will disappear. Service: We assurance that our products are of reliable quality and can meet your needs. If you have any questions about our products, please feels-free to contact-us. Specifications: Material: Platic Color: Black/Red/Green/Blue Package Weight: approx.10g Style Options: 1mm/2mm Size: approx.147mm/5.78in Note: Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks! Package includes: 1Pc Water Erasable Ink Pen