About this item
- One pen writes using invisible ink, whilst the other pen reveals the secret messages you have written
- Write using the white pen to leave a hidden message on regular paper
- Scribble over your message with the black pen to reveal what was written
- Pens are approx. 15cm, packaged dimensions are W6cm x H24 cm x D1cm
- All TOBAR products are rigorously tested and certified safe to the highest EU and UK standards