1- The Rest Medical Cushion relieves back pain and is suitable for office chairs for people who study for long periods or for the car. It is very comfortable and well-known from the Rest company. It has a feature where if the cushion cover gets dirty, you can wash it very easily. This is in addition to the medical benefits for the lower back. You can search on Google for it and see its full features. I bought it about two months ago, and the reason for selling is that I didn't benefit from it much because I don't sit at the desk much, and my use of it was minimal. 2- Two office chair armrest cushions are the best-selling on Amazon and have been rated by 17,000 buyers. They are very comfortable. Welcome, God bless you. I hope we can agree on the price.