Microwave or Freeze NECK Pillow : Buckwheat-Flaxseed-Rice Pillow+ Organic Lavender and Pine - Removable Cover: BOLD BIRDS on BRANCHES 100% cotton Made in USA Natural Buckwheat-Flaxseed-Rice Heating Pad or Cold Pack Neck/Back/Shoulder/Muscle Soreness Pillow Therapeutic Aromatic Pillow One-of-a-kind and Unique Pillow Removable Cotton Cover for Washing