Swordfish are generally divided into three types: broadsword, medium knife and knife. Generally speaking, more than 8 cm is a broadsword, 5-8 cm is a medium knife, and less than 5 cm is a knife. "3-5 bands" means that each fish weighs about 3 to 5 Liang; "4-7 belts" means that the approximate weight of each hairtail in this box is about 4 to 7 Liang; "5-8 belts" means that each belt of hairtail in this box weighs about 5 to 8 Liang. "7-9 belts" means that each belt of hairtail in this box weighs about 7 to 9 taels.

The wider the swordfish, the better the quality. Fresh swordfish is delicious and suitable for frying or stewing.