D-Core Cervical Pillow, manufactured by Core Products International, offers superlative cervical support at an economical price. The D-Core Cervical Pillow delivers relief through its "D-shaped" center, which gently supports the head while the lobes support the neck. Each part functions to help restore the natural curvature of the neck and upper spine. Product Size: Midsize: 23" x 15" x 4" (58 x 38 x 10cm) The unparalleled support, additionally, offers relief from tension headaches, neck spasms, arthritis, and even snoring. Offering 100% polyester fiber, this cervical pillow is more comfortable than other supportive pillows on the market.