This is an FMT-made "Get Well Tomorrow" headache relief pillow. Using it for 10 minutes a day can correct cervical spine misalignment and improve chronic headaches, straight neck, stiff shoulders, and autonomic nerve disorders. The instruction manual has been lost. The item includes the pillow only. I've only used it a few times after purchasing, so there are no stains, odors, or dents. Please understand that this is a used item and has been stored at home before purchasing. - Brand: FMT - Color: Light Green - Shape: Cylindrical Thank you for looking.