A friend and I got a two of these pens on the last drop - black and regular. The regular is our favorite by far. The black isn't quite as eye-catching and the ink starts to accumulate near the tip for a messy look. It can happen with the regular one too, but it doesn't look as bad because of the grey tip.
utdeepThe ink can be wiped off for the most part. It's not overly resistant to water, so get a wet cloth if it doesnt just rub off. I've smeared some ink on the tip of mine several times, and never had any issue getting it off. Both the black ink it came with and the purple ink I primarily use.
Also for those of you that care, you can find appropriately sized o rings in almost any color. I have purple for mine that I bought on ebay for about $2-3.
Also for those of you that care, you can find appropriately sized o rings in almost any color. I have purple for mine that I bought on ebay for about $2-3.