DirectGlow XL Invisible UV Blacklight Reactive Large Tip Ink Marker
Our DirectGlow brand ultraviolet reactive invisible ink markers use our premium water based formula for outstanding UV glow effects. Ideal for secret messages, glow parties, escape rooms, birthdays and other fun recreational activities. Also well suited for serious security measures like admissions, returns verification, theft identification, merchandise/warehouse operations and more.
These markers have a large body and wide tip. Great for marking larger areas where a more noticeable mark is needed. They also have twice the amount of ink inside for longer lasting use.
Totally invisible, won't wash off easily, and is only visible under blacklight. These are the markers you want for for invisible, "only visible in blacklight" marking. Please note blacklight is required. They do not glow in the dark by themselves.
Can also be used on: Aluminum, ABS, Acrylic, Rubber, Cellulose, Acetate, Formica, Nylon, Polystyrene, and Polyethylene. Fine tip for precision application. Ink is non-toxic, fast-drying and non-transferable. Avoid sensitive area like eyes and mouth. Marker is non refillable.