Thin chalk marker with refillable chalk reservoir. The rotating serrated wheel at the pen point allows fine markings either with curved or straight templates or freehand.
The fine pen point permits accurate drawing of both straight lines and freehand curves. The refill cartridge is easy to replace. Pat the powdered ink to erase lines and markings. Wash fabric with detergent to remove any persistent marks. Ironing or dry-cleaning may make the marks permanent.