[Interchangeable] Bamboo Pillow [Bamboo Hard Pillow, 5cm High x 40cm Long] Includes Instructions (Product Number: 73-807), Recommended for Relieving

Size: As shown in the image. Material: Moso bamboo (Moso bamboo) from Oita Prefecture. Country of origin: Oita Prefecture, Japan. [How to Use a Bamboo Hard Pillow] As a guideline for the height of a bamboo hard pillow, we recommend choosing one with a radius equal to the length of your ring finger. However, because the shape of the cervical vertebrae varies from person to person, it seems that the height of a bamboo hard pillow cannot be determined solely by the length of your ring finger. If you find it too low, try placing a folded bath towel under the pillow or wrapping a towel around the pillow to adjust the height to suit you. It is made from carbonized moso bamboo (bamboo steamed in a high-pressure cooker) native to Oita Prefecture. Holes have been drilled to allow for good ventilation. Please use the "Rakumakura Rakuchin" bamboo hard pillow. Place the bamboo hard pillow against your neck and lie on your back. If the bamboo surface is in direct contact with your neck and causes pain, adjust it by placing a towel on top. Start with about 10 minutes and gradually increase the time. Once you get used to it, try using it throughout your sleep. [If you experience any numbness or other abnormalities in your neck while using it, discontinue use and make minor adjustments, such as lowering the height of the bamboo hard pillow.] [Customer Comments] [Perhaps the Best Choice for Hard Pillows] I used to use a paulownia wood pillow, but it would get darker, dent in from bumping into corners, and the more I used it, the more shabby it became. It also didn't fit well. I thought the bamboo hard pillow would easily solve these problems, so I bought it, and it did just as I expected! It feels like it's sticking to my neck, has the unique luster of bamboo, and is durable. I'm very satisfied! ★★★★★ Nishi-style hard pillow: I searched online to try the Nishi-style pillow and found that paulownia and bamboo pillows are available. I found that paulownia is soft and easy to see, while bamboo is hard but not too hard, and is said to have a strong negative ion effect, so I purchased this one. I'm 158cm tall and a little on the thick side, so I ordered the medium size, but I read a review that suggested starting small would be safer. When it arrived, the bamboo felt cool and refreshing, and the hole in the center seemed like it would have a cooling effect in the summer. I started with 10 minutes, and am now gradually increasing the amount of time I use it. When I have severe neck and shoulder stiffness, I stretch by shaking my head up and down and side to side on the pillow, and it seems to help. I inquired about the size and received a very honest and helpful response, which I'm grateful for. I would definitely use it again if I have the opportunity. Please note: *Price is per item. *The color of the actual product may differ slightly from the image due to monitor and lighting conditions. *Please note that the listed product size may vary slightly.