You could put a ball on the floor and it would roll to the back.
As we saw in the smudge test it takes a bit longer to dry and I did end up smudging the dots which is a shame as it does have quite good precision.
The Pentel Pointliner: Â Â Â Â Â Â Â : The Pentel Pointliner is a fineliner that I have only started using recently.
The ink of a drawing pen tends to be more opaque and will not smudge or bleed through the paper, as well.
When I realized what I'd done, I went to the basement expecting to find a bunch of clothing with nasty black stains.
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