Hefty Mat Anti-Fatigue Rubber Mat, Anti-Slip Floor Mat, Drainage Rubber Mat, for Wet and Dry Areas, Pools, Garage, Kitchen, Bath, Workshop, Workbench, 3 Feet x 5 Feet x 1/2 Inch, Black

Own several of these and have them by every door. They’re super durable and are great for catching all of the little stones and some dirt before entering.

Use under litter boxes so litter doesn’t track as bad. Very good quality mat.