Invisible Ink Pen, Spy Pen with 3 PCS Mini UV LED Keychain Flashlight, Disappearing Ink Magic Pen with Black Light Markers for Secret Notes, Fit for Christmas Halloween Holiday Gifts (3 PCS) - Daemson Daemson

• Engaging Design: Discover the thrill of invisible ink with pens that remain unseen in regular light, yet reveal vibrant messages under UV light. Write confidential messages or mark your precious belongings with a touch of mystery.The Daemson invisible ink marker is the perfect tool for creating invisible messages or signing important documents. Intriguing Writing Tool: Unleash your creativity by using these light-enhanced secret pens to craft hidden messages on paper, fabric, skin, and more. Write your message, wait a moment, then shine the pen's UV black light to reveal amusing and captivating words. Currency Detectors: The Mini LED keychain UV black flashlight double as currency detectors, unveiling hidden strips on various currencies, including USD, RMB, EUR, CAD, INR, GBP, and more. Ensure the authenticity of bills quickly and easily. Versatile Uses: These invisible ink pens with UV light are the perfect choice for birthdays, parties, Christmas, Halloween, and other holidays. Elevate the excitement of riddles, treasure hunts, and themed parties, captivating individuals of all ages with these engaging and memorable gifts. Comprehensive Package: This set includes 3 PCS invisible ink pens, each measuring approximately 14 x 1.5 cm (5.5 x 0.6 inches), easy to carry, featuring blue, pink, and yellow ink. Accompanied by 3 PCS UV LED keychain lights, sized around 4 x 2.3 x 0.5 cm (1.57 x 0.9inches), perfect for authenticating banknotes.