1. Materials and care: Skin-friendly pillowcase + buckwheat shell filling. The inner pillowcase has a hidden zipper and the inside is refillable and you can adjust the height of your pillow by removing or adding buckwheat shells. Remove pillowcase and liner before cleaning. Don't wash the filling.2. Comfort and relaxation: Handmade, ergonomic design. The neck pillow is made of breathable fabric. Our buckwheat pillows are designed with maximum comfort and versatility in mind. Ease your sleep problems and make you feel very comfortable.3. Ease your neck: Whether you are napping at home or at the office, our buckwheat husk pillows support the position of your neck and head, making you more comfortable and relaxed. Can be a great help in reducing painful sleep problems such as neck pain, muscle pain, neck stiffness, headaches, stress and tension.4. Take some time to get used to your buckwheat pillow -- the amount of padding you have determines how thick your pillow is. The pillow filling you receive is plump, you won't like its firmness the first time you use it, and if it is too tight for you, you can remove the excess shell (padding) to make the pillow looser.