Project MC2 Light Up Diary with Invisible Ink Lock & Key,

Sshhh it's a secret: write secret messages only you can see using your special invisible ink pen and read your writing with the UV light attached Use anytime: use your diary any time of the day with its cool light up feature Manufactured by Project Mc2. Get creative: adorn your stories with cool stickers and embellishments making each page unique Kit includes: 1- 80 page light up diary 1 black light pen 2 sticker sheets and easy-to-follow instructions Store your secrets with ease: keep your secrets safe with this trendy diary under lock & key Age range: 6 years & up