Traditionally a face cover would apply jin-silk, a deluxe compound silk weave often with fancy patterns, as face and juan or qi, a relatively plain silk tabby or twill, as back. The face was usually in a rectangular shape, with a length of 20cm or so and width 14cm. Though a complete piece of jin-silk was often used, sometimes it would be four or five smaller patches with different colors sewn together. And the four edges of a face cover were usually sewn with wide strips of juan that would hang properly, adding beauty to the ornament piece when being worn. While juan was a more popular choice for the back, there were also rare cases that dyed juan was used for the face. And sometimes a face cover would be padded with a thin layer of cotton.