If it is woven with Hengyuan Xiangmohair 3680, it can be woven in two places, 1. Take 50 stitches (28CM) around the circle, knit two rows of stitches according to the figure A, then knit a diagonal strip, four rows above and four rows below, knit the first stitch at both ends, add stitches on the right side of odd rows, sew on the left side, and knit to the appropriate head circumference (I knitted 34cm, I forgot it was 6544).