I love my car/train mat ladies. Just a standard kids rug with rubber backing, have had many a spill and the liquid hasn't done any damage to the good carper underneath (good ol rubber backing). I keep seeing those alphabet mats everywhere still, wonder when they are going to pull them off the shelves completely....I actually threw mine out last weekend when we did a big garage clean up. I bet they'll recall them now and I won't get my pennies back!