We exclusively utilize Grade A Silk, which is the highest grade of silk known for its durability. This top-grade silk can be unraveled without the silk floss breaking. Each silk floss can stretch up to a mile in length. To ensure both quality and cost-effectiveness, we primarily use 5A grade silk fabric. While 6A grade silk fabric is available, we do not recommend it as there is minimal difference in texture and quality compared to 5A grade.