Pen – High Quality UV Invisible Ink
This fine point pen uses high quality permanent invisible ink. Waterproof and easy to handle.
Write secret messages, or mark your personal property to help recover it in case of theft. Assign a number to each wedding guest’s RSVP, and if the invitee forgets to write their name on the RSVP card they send back, you’ll know who meant to respond.
Available in BLUE or PINK ink.
Requires UV black light to make ink visible (not included).