Posted by a reviewer on Amazon

After writing on a page they totally disappear cant see them at all until you put the black light to them

Posted by a reviewer on Amazon

If you are needing uv markers to write on clear plasticacrylic then do not buy these because the ink beads up and smears

Posted by a reviewer on Amazon

Of course it’s hard writing on an uneven surface but it worked and the gift was revealed no issues just messy handwriting

Posted by a reviewer on Amazon

This really stays invisible until exposed to uv lighting at which point then pops out intensely

Posted by a reviewer on Amazon

There are some minor differences in the function and application of each color as i received thempink point came split and had to be trimmed with nail clippers before i could use it

Posted by a reviewer on Amazon

Application is very wet and bleeds like crazy if lingering too long either due to the ink or the split tip

Posted by a reviewer on Amazon

Goes on a pale lavender color and transforms before your eyes into an extremely brilliant hot pink as it dries

Posted by a reviewer on Amazon

When wet glows greenish yellow glows a pale blue when dry