Used for invisible pictures over white. Chalk is white in daylight and changes to color shown under black light. Colors shown are approximate. Sticks measure 1″x 1″x 3″). We make what we sell!
The most vibrant chalk available! Works great on concrete, asphalt and a host of other surfaces (not recommended for black boards). We make what we sell. Each stick measures 1″x 1″x 3″.
