While the hammer rubbing and brush rubbing is with black paper and white characters, cicada wing rubbing is as thin as cicada wing, black and white with crystal speckles.

• 而且风格各异，锤拓、擦拓纸黑字白，反差强烈，蝉翼拓纸如蝉翼，斑点透明，黑白相间。