My Invisible Diary Sets
This is the perfect gift for kids and teenagers who want to keep their diary secret. The 240-page diary locks securely (and comes with two keys), but that's not the only thing keeping the words safe. Two invisible ink pens are included and the only way you can read what they write is by using the included mini UV light, which comes with replaceable batteries. All these items can be stored in a reusable 6.5" x 7" keepsake box. The box and diary come in a variety of themes; all are colorful and will let your child enjoy writing secret notes and messages.