After writing, the ink will be invisible, unless you turn on the light on the cap to see the secret information perfectly, so funny and amazing. Suitable for T-shirts, paper, skin and smooth surface. Perfect for the RSVP's to wedding invitations, birthday gifts, halloween gifts, christmas presents for kids and friends, make a fun party favor.

Normal Production Time
10

Product Size
5.2L

Country of Manufacture
Other/None

Additional Information
Host a kids party favors stocking stuffer, treasure hunt, escape room, or classroom activity