Be Sensible | We all try to protect our desks. Have the confidence that you won't damage the desk you love. These desk mats come in three sizes; 10x16 inch, 12x18 inch, and 14x24 inch. The top fabric is neoprene, and the bottom is white with non-skid natural rubber. Their features include a soft neoprene top, non-skid natural rubber backing with 1/8 thickness. Easy to clean, just spot clean.