Drip Wick Urinal Mat
Your review: These feature an absorbent pad, that doesn't show the ugly yellow stains of others I have used. This leads to being able to extend the life of each mat, thus saving quite a bit of money.
Pros: The dark color design of the absorbent mat is effective in extending the life of the mats, because they hide unsightly stains that would necessitate earlier replacement. I have extended the life out of a urinal mat by 3 or 4 times, getting 6-8 weeks per mat, instead of less than two.
Cons: Not sure what the difference between the gray vs. the black mat is, they look identical side by side.