Buki France NB002 Secret Notebook Do you have something to say that you don't want anyone else to know? Write it down in this top-secret notebook and decode it with the included UV light! The Buki France NB002 Secret Notebook is perfect for writing down whatever's on your mind, whether it's a to-do list, a silly joke, or an embarrassing story. With 300 pages of sticky notes, there's plenty of room to write, and the included invisible ink pen ensures that your secrets will stay safe. So go ahead and let your imagination run wild - with the Buki France NB002 Secret Notebook, anything is possible! Write a secret message with the clear pen and use the UV lamp on the cap to decrypt it. Includes a 300 sheets sticky pad and an invisible ink pen with UV lamp. Requires 3 x LR41 batteries included. A notebook with 300 sheets of sticky notes decorated for writing or drawing secret messages. Use the invisible ink pen to write a secret and the UV lamp to read it Requires 3 x LR41 batteries (included) Suggested age suitability 4 years and upwards.