You can't see what you write. It appears when you shine a light on it ☆彡 Fun and exciting! This is a set of 5 "Secret Pens" that let you feel like a spy ♪ ■ Product Description These are spy pens with invisible ink that reveal messages when a black light is shone on them. Nothing appears when you write normally. Only when you shine the light will your message glow clearly. Truly a "pen that makes words glow." ■ Set Contents Set of 5 pens - Includes a black light on the pen - Pen colors: See product image for set contents (All ink is transparent. It glows in fluorescent colors with the light) ■ Features - Secret communication with invisible ink - Built-in black light (top of the pen) - Perfect for coded messages and fun games - Enjoyable for both children and adults ■ How to Use 1. Write words or draw pictures on paper, etc. 2. Press the light switch on the top of the pen. * Please be sure to remove the white insulating sheet before use. 3. Shine the light on the written area, and your secret message will appear. ■ Recommended for Scenes Like These ◎ Events ◎ Parties ◎ School festivals ◎ Concerts ◎ Treasure hunt games ◎ Birthday parties ◎ Prizes and small gifts ◎ Photo opportunities Perfect for code games and surprise messages ♪ ■ Notes on Overseas Products and Request for Transactions We handle overseas products. Please read and agree to the following before purchasing. • Product Quality: Compared to Japanese products, there may be manufacturing imperfections (e.g., warping, loose construction, minor scratches, color variations). We inspect products carefully, but we would appreciate your understanding of the characteristics of overseas products. • Color: The actual color may appear different from the product image depending on your device's environment. • Returns/Exchanges: We do not accept returns or exchanges for reasons such as "difference in image" or "size not fitting." Please be sure to check the size, etc., before purchasing. • Handling of Defects: In the unlikely event of a clear oversight on our part (e.g., damage, incorrect item sent), please contact us before leaving a review. We will respond with sincerity. We have other items for sale. Please see them here → #もももかの文房具 (Momomoka's Stationery) #もももかのペン (Momomoka's Pens)