A Chaco chalk pen is an essential tool for marking straight lines and freehand curves on woven and tight knitted fabrics e.g. a cotton dress, denim jeans or a linen top.
 
Ideal for marking out the shape of your darn before you begin sewing; especially if you're aiming for a neat repair.
 
It features a tapered and thin wheel tip that allows for very sharp lines and distributes an even amount of chalk.
 
The body of the pen contains a powder-based loose chalk which can be refilled when empty. 
 
To remove the marks simply brush them away or pop the garment in the wash.
 
*Please be aware this pen will not work well on loose or chunky knit fabrics.