6 Pcs UV Light Luminous Invisible Ink Magic Pen, Environmentally Friendly and Non Toxic Ink UV Light Spy Pen, Fun Entertainment Secret Message Marker Ink Pen

Overview1. Kids like these as spy pens to play different games and fun activities: such as surprise birthday parties, or games like revealing a top secret message to their parents or grandparents. 2. Children like to explore new secrets, and the invisible ink pen will bring them surprises, the party needs a good atmosphere, and its surprising performance will surprise you and your friends. 3. Get creative by writing secret messages, sketching, and drawing, messages appear when you shine the UV light over them. 4. Children will love these spy pens, use this pen to keep secrets and play detective games, perfect gift for children and friends.