Dritz^® Magic Marking Chalk.

Easy to use and efficient, the Dritz Magic Marking Chalk is a popular marking accessory used by tailors, and general quilters. Great for applying markings and measurements, this magic marking chalk is specially formulated so that the markings disappear in 2 to 3 days. If you wish to eliminate the markings immediately, you can use a preheated iron that has been set at a suitable temperature to iron over the marks. 

• Includes two pieces
• Magic Marking Chalk disappears in 2 to 3 days
• Warning: Contains benzoic acid. Irritating to eyes. Keep out of the reach of children