NVM1188 Features: * Inflatable rubber cushion * Made of durable heavy-gauge natural rubber * Helps to relieve lower back and tailbone discomfort * Aids in the prevention of ulcers and the discomfort from hemorrhoids or episiotomies * Conforms to the body, contours to provide comfort and support when sitting for long periods of time Dimensions: * Dimensions: 11.81"" H x 6.69"" W x 1.97"" D