Features: Magic LED UV Light Ballpoint Pen: This innovative ballpoint pen features a built-in UV light that reveals invisible ink, adding a touch of magic to your writing experience. Invisible Ink UV Light Ballpoint Pen: Write secret messages or create hidden designs with this pen's invisible ink, which can only be revealed using the included UV light. Invisible Ink Ballpoint Pen with UV Light: This pen combines the convenience of a regular ballpoint pen with the excitement of invisible ink, making it perfect for spy-themed games or creative projects. Smooth Ink Ergonomic Design Lightweight Pen: Experience effortless writing with this pen's smooth ink flow, while its ergonomic design and lightweight construction ensure comfortable use even during long writing sessions. Quickly Drying Portable Ergonomic Handle Pen: Say goodbye to smudged ink with this pen's quick-drying formula, ideal for left-handed writers. Its portable design and ergonomic handle make it a must-have for on-the-go writing needs. Specification: Type: Reusable Material: Plastic Shell Total Length: 132mm Notes: 1. Due to lighting effects and shooting angles, there may be a slight color difference in the product. Please understand. 2. Due to manual measurement, there may be a slight tolerance in product size. Includes: Choice 1-4, 6-11: 1 x Invisible Ink Pen (No retail box) OR Choice 5: 2 x Invisible Ink Pen (No retail box)