Add a fun and mysterious twist to your parties and gifts with this set of 2 Invisible Ink Pens with UV Light, perfect for birthdays, Halloween, Christmas, and other special occasions. These secret pens allow you to write hidden messages that remain invisible to the naked eye until illuminated by the built-in purple UV light on the pen cap, creating an exciting and interactive experience for friends and family. Key Features: · Invisible Ink Technology: Write secret notes or draw on various surfaces like paper, T-shirts, and skin with smooth, colorful disappearing ink that is invisible under normal light. Reveal the hidden message clearly and vividly by turning on the UV light embedded in the pen cap. · Built-in UV Light: Each pen features a convenient purple light on the cap that instantly illuminates the invisible ink, making secret writings easy to read in low light or dark environments. · Safe and Non-Toxic: Formulated with harmless, odorless ink, these pens are designed to be safe for children over 3 years old, providing a healthy and enjoyable toy without any harmful effects. · Reusable and Washable: The invisible ink is permanent enough for play yet can be washed off easily from skin, fabrics, and paper, ensuring hassle-free cleaning after use. · Compact and Portable Design: Made of durable plastic with a length of approximately 13cm, these pens are lightweight and easy to carry, perfect for parties, school activities, or travel. Specifications: · Material: Plastic · Size: Approx. 13 cm length · Package: 2 reusable invisible ink pens with built-in UV lights Bring creativity and surprise to your celebrations with these Invisible Ink Pens with UV Light, ideal for kids and adults alike who love mystery, games, and interactive fun. Perfect for secret messages, creative crafts, and unique gift ideas.