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View compareFrequently Asked Questions
- Q: What age group is suitable for the Invisible Ink Pen with UV Black Light? A: The Invisible Ink Pen is recommended for children aged 3 years and older. The product is designed to provide safe and enjoyable spy activities for kids, making it a great addition to birthday parties and classroom supplies.
- Q: How does the invisible ink pen work? A: The invisible ink pen uses a special ink that is only visible under the built-in purple UV light. After writing your secret message, simply shine the light from the pen's cap to reveal the hidden text.
- Q: Are the inks in these pens safe for skin and other surfaces? A: Yes, the inks used in these invisible pens are safe and tasteless, making them suitable for writing on various surfaces, including skin, paper, and fabric. They wash off easily, ensuring a fun and mess-free experience.
- Q: Can the batteries in the invisible ink pen be replaced? A: Yes, the invisible ink pen features a replaceable button cell battery, allowing for extended use without the need to purchase a new pen once the battery runs out.
- Q: What activities are ideal for using these invisible ink pens? A: These invisible ink pens are perfect for a variety of activities, including birthday parties, treasure hunts, escape rooms, and classroom activities. They add excitement to games and learning by allowing kids to create hidden messages.