1 of 1 people found the following review helpful
Probably perfect for cotton, linen, etc. Felt? No.,
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This review is from: Sew Easy Vanishing Fabric Marker Pen (Toy)
I use vanishing ink pens a lot for marking out felt. The nib on these pens is very fine indeed, and therefore probably excellent for use on fabrics such as cotton, linen, canvas, etc. However this particular pen does not work well on felt because it lifts the surface fibres and therefore does not draw a clean, clear line.