Buoyancy provides maximum support to the head and neck to help relieve tension and stress while promoting proper cervical alignment, Hypoallergenic fiberfill cushioning surrounds the removable, leak-resistant vinyl water bag with drain plug, Adjust water to desired comfort level from soft to firm, Water stays at room temperature, Fits most standard pillow cases, White polyester/ cotton self-cover pillow is machine washable, Dimensions: 24" x 19", SKU: DMI890