The WonderGel Sof-Pillow, model WG-SP, is a cervical or positioning pillow designed for use by individuals who need positioning or neck support. The pillow has a flat bottom and rounded top. Its shape provides lumbar, leg, and neck support, and its plush, washable cover stays cool on skin. The unit is made of WonderGel, which consists of hollow columns of a gel called Gelastic, a solid rubber-like material. The columns form a pattern similar to a honeycomb, which redistributes and equalizes pressure. COLOR: Cover is white.