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View compareFrequently Asked Questions
- Q: What colors do the invisible ink pens come in? A: The invisible ink pens come in three colors: blue, pink, and yellow. These colors are only visible under UV light.
- Q: What is the size of each invisible ink pen? A: Each invisible ink pen measures five and a half inches in length and zero point fifty-nine inches in diameter. This compact size makes them easy to handle and carry.
- Q: How many pieces are included in the set? A: The set includes a total of six invisible ink pens. Additionally, it comes with six mini UV LED keychain flashlights.
- Q: What age group is this product suitable for? A: These invisible ink pens are safe for children over three years old. They encourage creativity and imaginative play for kids and adults alike.
- Q: How do you use the invisible ink pens? A: To use the pens, simply write your message on paper, fabric, or skin. Use the UV light to reveal the hidden writing.
- Q: Can I use the UV light for purposes other than revealing ink? A: Yes, the mini UV LED keychain flashlight can also be used as a currency detector. It reveals hidden security features on various currencies.
- Q: How should I store the invisible ink pens? A: Store the invisible ink pens in a cool, dry place away from direct sunlight. This helps maintain the quality of the ink.
- Q: Are the pens safe for kids to use? A: Yes, the pens are safe for children over three years old. They are designed to be engaging and encourage creative play.
- Q: How do I clean the pens if they get dirty? A: To clean the pens, wipe them gently with a damp cloth. Avoid submerging them in water or using harsh chemicals.
- Q: Are these pens suitable for themed parties? A: Yes, these invisible ink pens are perfect for themed parties and special occasions. They add an element of surprise to games and activities.
- Q: What if the product arrives damaged? A: If the product arrives damaged, contact customer support for assistance. They will guide you through the return or exchange process.
- Q: Can adults use these pens for practical purposes? A: Yes, adults can use these pens for practical purposes such as creating secret notes or identifying currency security features.
- Q: Is the ink safe for skin application? A: Yes, the ink can be used on skin, but it is recommended to test a small area first. It is designed for safe, creative fun.
- Q: How long does the UV light last? A: The mini UV LED keychain flashlight is designed for long-lasting use, providing hours of illumination. Replace the battery as needed for optimal performance.
- Q: Can I use these pens on fabric? A: Yes, you can use the invisible ink pens on fabric. The ink is designed to be used on various surfaces, including paper and skin.



