Ever try writing on a balloon and it pops? Now you can personalize party balloons without fear! Writes on mylar or latex and they won't smear or bead up. You could write your party details on an inflated balloon, deflate it and mail it as your invitation! Write names on balloons and attach one to each chair at your party to designate seating. Let kids draw faces on them as a party craft to take home. The opaque colors are bright and fun! Bold set includes: red, royal blue, kelly green & black. Bright set includes: purple, hot pink, orange & bright aqua. Non-toxic, bullet tip. Made in USA ~ Sara.