GAINWELL White Liquid Chalk Markers 3mm and 6mm Nibs - Use on Chalkboard, Whiteboard, Glass - 4 Pack - Water Based Wet Wipe Erasable Pen

Good quality, varied nib thickness. Great for window art and comes off easily.

Bought these for our Christmas window project and they’re great. You get four pens - 2 thick, 2 thin. Each pen has a bullet/chisel nib which can be turned around so in effect you get 4 different pens. We stuck with the bullet tips to create a Christmas design. Obviously if you’re using them angled downwards (for drawing above you), they need a shake occasionally to keep the ink flowing. We just swapped them around occasionally to let the other pen recover for a minute and then they have a good inky flow. They do smudge on glass, so you need to work systematically and avoid going over the same bit with your hand, and avoid things brushing up against the glass once you’re done as it is easily rubbed off. They wipe off really easily with a dry paper towel so removing mistakes or cleaning it off completely will be a doddle. I can’t comment on how good these are on blackboard as we’ve only used them on glass, but we are very happy with these pens.

Used this for marking a skittles board, 3 weeks use over 4 nights for 1 marker and it ran out 🤔, writing came out and dried quite well. For longevity I wouldn't recommend, the only real plus side was no chalk marks left on me or my clothes

I bought these to draw a Christmas window in my living room. They are prefect. Great that you get different sizes. Very easy to come off. Wet or dry cloth, just wipe over the glass.

Great pens for creating winter/seasonal designs . I used on my windows over Christmas, brilliant. Each pen last a long time .

I have bought a few of these and they don't seem to last that long. They go dry very quickly

Great pens. Brilliant buy. Thank you

Gave as Xmas present with new chalkboard. Very happy so far. Just like using a felt tip pen. Wipes off easily with a damp cloth. Thoroughly recommend