Includes 1 x King / International Standard Pillowcase (20” x 36” | 51cm x 91cm) with invisible zipper closure | Machine washableOVER 95% OF USERS AGREED SLEEP CREASES, SLEEP LINES AND SLEEP WRINKLES WERE FEWER AND LESS NOTICEABLE. Slipsilk.™ Laboratory Tested. Hypoallergenic. New without tags, never used. King size pillow.