Deluxe Comfort Knee Rest Pillow with Zippered Cover, 22" x 11" x 15" - Medical Grade Foam - Removable Easy Care Machine Washable Pillow Cover - Lumbar Support - Bed Wedge, White Made of Medical Grade foam for added durability Comes with removable / washable cover Provides relief from varicose veins, swollen ankles, legs and phlebitis Specialty Medical Pillow Improves Circulation