The original armrest is very hard, and the height may not be suitable for your table. The armrest pad can cover it, become soft and elastic, so don't have to worry about being scratched by the worn armrest surface. You can also increase the height of the armrest so that your elbows are no longer suspended to help with stress. Make you feel comfortable sitting for a long time.QUALITY MATERIAL The desk chair armrest pads are made of soft polyester and high-density memory foam for the most comfortable fit on your arm and elbow. An anti-slip fabric has been added, which ensures fixing of pads on the chair. These chair armrests have free removable cover mediated with a convenient zipper that allows the cover to be machine washed anytime for easy cleaning. We ensure Comfort with the necessary cleanliness.BEST DIMENSIONS We have upgraded the new and larger size to satisfied the requirements of different people, thicker and wider, the size of 9.4x 3x 1inch. We still use super long Velcro to fix on the armrest of our chair at will. DURABILITY The great built, high-quality foam, as well as the fabric of these desk chair armrest, ensure extreme durability. You can gift this to anyone and never worry about the quality.There may be some smell after opening the package. Don't worry. It's normal. It will disappear after a short period of use.