Features: 1.Made of aluminum powder and organic solvent, and the traces drawn are very clear, which can achieve a good marking effect. 2.There are a total of 200 refills, which are durable and suitable for craft lovers. 3.As a special gift for sewing or leather craft lovers, it is an economical gift for friends. 4.These marker pen refills can be erased without leaving any residue and will not stain your clothes or fabrics. 5.Each refill comes with a transparent cover to keep it in good condition when not in use to prevent waste. specification:Item Type: Fabric Refill : 2 Boxes/200pcs Main Material: Aluminum powder and organic solvent (the product is composed of complex materials) How To Use and Method: Write and draw lines where needed to serve as a status marker. Net Weight: Approx. 292 g / 10.3 oz Packing Size: Approx. 14 x 10 x 5cm / 5.5 x 3.9 x 2in PackageList:200 xRefill NoteBecause some fabrics have special chemical composition, please test on the fabric scraps before using.