These floor mats are well made, don't have a particularly bad smell and aren't too slippery. However, having written this, they do move with constant use, although they don't feel loose or slippery. One problem I had with your description is that the "universal" floor mat actually fits compact cars but is too small for our sedan (the Nissan Maxima in my case). Front mats cover about 80% of the front and back, but only about 75% of the side. So if you have muddy feet, you need to be extra careful where you step. The same goes for the rear mats; in our case they cover about 50% of the area in front and behind and about 80% of the area on the side. In short, floor mats work best when they match your vehicle's floor surface. They fit the floor space if your car is compact or smaller. If you have more floor space they work and are better than nothing, but you still have exposed areas of floor. Result? Effective and inexpensive protection.
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