Farmers are knitting "Do" (fish-pot) in Hung Yen province, Vietnam. Fish-pot is a traditional fishing tool to hang fishery which used mainly in Vietnam’s northern delta provinces. The products are sold throughout the northern region and exported to other countries. In the leisure following harvest time, they knit fish-pots all day long. Knitting fish-pots requires patience and a love for the craft. Finished products are put on a smoking-shelf and smoked them to enhance their durability.