Specifications: Fine point marker, is loaded with special ink that is only visible under UV light. It includes a mini LED UV light with batteries, so you can view your messages. Students can use the pen mark important information in the text books, in order to more efficient to complete the review your lessons. Perfect for your to record the confidential information. Type: UV Light Highlighter Pen Quantity: 1Pc Shell Material: Plastic Battery: 3 x Button Batteries (Included) Features: Conspicuous Fluorescence Color, Smooth Writing, Easy to Carry, Practical, Creative Stationery Length: 13.5cm/5.31" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x UV Light Highlighter Pen