Easy to see fabric marker which vanishes in between 24/72 hours, or can be rinsed out in cold water. 
 
IMPORTANT-READ FIRST:
All fabric markers should be first pre-tested on a scrap of fabric for both application and removal. All temporary markings must be removed before ironing or washing in detergent. Do not iron or hot wash any pen or pencil mark before removal as the heat may set the mark permanently. Please wash out the marks within 30 days of marking the fabric. 

Vanishing Marker:
Marks lines and designs for embroidery, quilting and sewing. Excellent for use with fabrics not suitable for washing. No need to remove marks - they will disappear withing 24-72 hours. If necessary marks can be removed with a damp cloth or rinsing in cold water.