Bamboo wheels are a kind of food, hollow cylindrical, brown in the middle, wrinkled surface, mostly 2 cm in diameter, 4 to 6 cm long, with light yellow head and tail. It is commonly known as lion dog fish eggs in Hong Kong and Macau. Lion dog balls, lion dog rolls or lion dogs were originally a snack made by mixing fish paste, flour, egg whites and seasonings, wrapping them on bamboo skewers or thin wooden branches, and grilling or steaming them over fire. Most of them have been made by machines.

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People stuff fish meat such as pollack, shark, flying fish, crucian carp, etc. with salt, sugar, starch, protein, etc. into bamboo rings, which are made of bamboo or Thick metal sticks are sandwiched between thick sticks and then grilled or steamed. Japanese hot pot, oden is more common.

In the 1980s, Hong Kong TVB's children's program aired a set of Japanese dubbed cartoon "Ninjago", in which the poodle loved to eat bamboo wheels. At that time, most Hong Kong people did not know this kind of food at all. Later, bamboo wheels were introduced to Hong Kong and sold, which was exactly the same as the one shown in the animation. Therefore, many Hong Kong people called bamboo wheels lion dog fish balls or lion dog balls.