Why put a pair of crab dishes?

The reason why the crab pendulum is a double pendulum is because of Feng Shui. According to relevant public information, crab is a crustacean. Its shell, claws and crab claws are hard, tenacious and bullying. In ancient times, it was regarded as an auspicious symbol of being the first, and the crab has eight legs and is homophonic, which is a good sign. It has always been regarded as a representative of wealth and development by Chinese people. The crab's two claws are very hard and powerful, and they can catch things.