BNADJ Features: -Provides therapeutic neck support by conforming to and properly aligning your head and neck with your spine.-Made from premium heat sensitive viscoelastic memory foam.-Ergonomically designed for optimum support of the natural curve of the spine.-Variable foam density inserts allow the pillow to be customized according to firmness preference.-Anatomically shaped for optimum comfort and support.-Promotes proper spine alignment.-Terrycloth fabric. Specifications: -4lb Visco Elastic Memory Foam w/variable density foam inserts.. Dimensions: -Dimensions: 14" H x 20" W x 5" D.