Please comment before purchasing. This is a sobagara (buckwheat hull) pillow. One side has buckwheat hulls, and the other side is like a cushion. You can use whichever side you prefer. The pillow filling is made of natural buckwheat hulls and cotton. [Size] Approximately 55cm x 32cm x 10cm Sobagara pillows are excellent for breathability and moisture absorption, providing comfort without trapping heat. You can also adjust the height slightly by tilting the pillow. Since it cannot be washed with water, please use a pillowcase. Airing it out in the sun occasionally will make it last longer. Because we had many guests staying over, we have a variety of pillows with different types and heights. I'm listing some unused pillows. These pillows were handmade by my mother and have been stored for a long time, but I don't think there are any noticeable stains. Please refrain from purchasing if you are concerned. * Not recommended for those with buckwheat allergies.