Wooden Pillow (Hard Wooden Pillow) Made of Paulownia Wood (Nishiki Health Equipment) Size: S (6.5cm) With cover I only tried it for a moment with a towel on it. The size is slightly off for my child, so I bought a different size. I am a 158cm tall woman, and this S size was just right for me. No price reduction. The Six Laws can be effectively implemented. The Nishiki wooden pillow is a kamaboko (fish cake) shape, and the bottom board is made of plywood, but the rest is made of paulownia wood. When you sleep with it conforming to the curve of your neck, the weight of your head will pull on your neck, and it is used to correct the distortion (subluxation) of the cervical vertebrae. The Nishiki wooden pillow is said to have the following effects: Corrects misalignment and subluxation of the neck bones (cervical bones) Prevents stiff shoulders Stimulates the cerebellum and medulla oblongata, preventing paralysis of the limbs Prevents ear, nose, throat, toothache, and bronchitis Prevents thyroid disease Cervical pillows that are placed from the neck to the back of the head can apply traction not only to the neck bones but to the entire body, and also have the effect of accelerating the recovery of the intervertebral discs of the entire spine. It is also effective for those with straight neck. ■How to use: Use it on a flat floor or on a thin futon as much as possible. If you are using it for the first time, your neck may hurt, but in that case, after using it for about 1 to 5 minutes until you get used to it, replace it with a regular pillow. Repeat this process, gradually increasing the usage time, and eventually use it overnight. Also, you can wrap a face towel around it to adjust the height and prevent dirt.