Features: 2 Pieces top-quality-invisible ink pen uv marker pens make of plastic material,durable-sturdy. Funny-pens,harmless and flavorless ink, you can write everywhere: t-shirts, paper, skin and any surfaces! healthy-toys for your kids and environmental pens ! Magic-and cool pens can be used widely,perfect for the to wedding invitations, goody bags for kids spy party, make a fun party favor. Invisible ink pen will write your secret message,when your message is writteng by the pens, nothing-you will see , but you can see message clearly with light that is the-secret message pen. Wonderful gift,sweet warm gift for friend family or yourself. Specifications: Material:Plastic Note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item. Package includes: 2 Pieces Invisible Ink Pen