4-Pack Color Pens let you mark on various colors of fabrics, or to color-code marks to indicate different stitches or thread colors, Includes pink, white, blue and purple marking pens all of your needlecraft projects. The writing effect is best on the fabric, and the lighter color will be less obvious on other items. If you want to write on materials other than fabric, please buy with caution.

Features:
Purple & pink pen : 1-7 days disappear, or use water to wipe them off immediately
Blue & white pen : writing trace does not disappear automatically, but it can easily and quickly erasable by water
Package include: 4pcs, Purple, Pink, Blue, White