This review is for Low Back Pain Cushion by AirGo Products item # B01MS3I2AG. It measures 18" tall, 14" wide and 4" thick. I am 5’4, and it fits my chair well. It is really comfortable. I like it more than my other memory foam Lumbar cushion as its higher back give me better support. I can lien on it all the way without feeling strange between my lumbar and the lower back. It also come with a plush cover that you can use it in winter. This is way much better than those you can get it from Walgreen’s for $10. Highly recommended. ..More