This is the powdered chalk refill for the by Clover.

How to Replace the Cartridge:

• Remove the stopper, keeping the opening upright.
• Screw in the new refill cartridge into the opening of the upper unit, tilting the cartridge slowly to avoid spilling the powdered ink.  

Notes for Use:

• Test on a piece of scrap fabric to be sure that the lines and marks can be erased (do not use fabrics that are not washable)
• Keep the Chaco Liner Pen Style as vertical as possible during use
• Ironing or dry cleaning may make the marks permanent
• Fasten the cap firmly to the body when not in use, to prevent spills

Materials: 

• Body: ABS Resin
• Powder: Talc, and pigment

Made in Japan.