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Invisible Black Light Chalk

  • This chalk appears white under ordinary light changing to brilliant colors under black light. Perfect for those ultra-cool dual image chalk drawings. Works great on wood, paper masonary, asphalt and a host of other surfaces (not recommended for black boards). Each stick measures 1"x1"x3"

Visible Black Light Chalk

  • These visible chalk colors have a daylight appearance and fluoresce brilliantly under black light. Works great on wood, paper masonary, asphalt and a host of other surfaces (not recommended for black boards). Each stick measures 1"x1"x3"

Category 1-2 of 2