5 of 7 people found the following review helpful
Impossible to clean off once used.,
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This review is from: Pentel Wet Erase Chalk Marker Medium Tip - Assorted Colours (Pack of 4 - Yellow, Red, Blue, White) (Office Product)
Used them once on a brand new chalkboard and cannot remove the writing at all, despite trying the recommended 'damp cloth' and progressing up to cleaning spray and a brillo pad. Result is, not only have i wasted money on the pens, but i have to also buy a new chalkboard. I would not recommend this product to anyone.