buckwheat - more info check here: https://www.textile-product.com/buckwheat-pillow-case-30107568/
Quick Brief
Material: 100% Silk
Filling: Buckwheat
Age Group: Adults
Part: Neck
Shape: Column
Use: Sleeping, Nursing, Camping, Neck, Travel
Feature: Anti-Static, Massage
Place of Origin: China (Mainland)
Brand Name: LVZHONGYUAN