Features: Marks will disappear automatically after a certain period of timing. It varies with temperature, humidity, cloth, preservations methods. The Erasable Pen refill is no toxic or harmful chemicals present in our refill and there is no danger of inhaling any powdery residues. This Fabric Marker Pen refill removing your spots is as easy as applying them. Simply wipe with a wet cloth or sponge or allow that marks. These Water Soluble pen refill work great for quilting, embroidery, dressmaking or other project where you need to mark fabric but do not want to leave a permanent marks. Water Erasable Marker Pen refill suitable for fashion students, tailoring professionals and garment making enthusiasts, etc. Specifications: Material: Plastic Color: Silver/Red/Green/Rose Red/Purple/White/Blue Package Weight: approx.65g Single Size: approx.13cm/5.12in (More Size Detail, Please See Photo.) Package Includes: 50Pcs x Water Soluble Pen Refill note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!