Please note this product contains button batteries (within the pen that are unremovable and can not be replaced). Button batteries are unsafe if swallowed.
Suitable for ages: 3+ years
A magical felt tip pen that uses invisible ink which appears in the beam of the UV torch hidden in the lid. The design features an on/off button and functions with 3 LR44 HD batteries (included).
Children will love writing secret messages to each other or using to write in their personal journal.