Tendon muscles refer to bovine tendons and their surrounding muscles. The palate is translucent and sticky. It can be used as soup or brine. Cow tendons distributed in Japan include various parts such as knees, neck tendons, and diaphragms, and the Achilles tendon is especially called "牛すじ." Originally, すじwas used in Western Japanese restaurants such as Kansai and Kyushu, and was distributed nationwide by convenience store chains using Gyeji as a fish cake ingredient. In Japan, fish cakes are used in various dishes such as curry, stew, Eohoyaki, and Japanese fried buckwheat noodles. Chewy and stout, it takes a long time to cook.