A large mooncake weighing 42 kilograms is claimed by its producer to be Yunnan`s "mooncake king" and is now available at the provincial capital of Kunming for 4,680 yuan ($715), the local web portal Yunnan.cn reported Wednesday.

The cake, 80 centimeters in diameter, cost its producer about four months.

But some local citizens doubt whether the effort can pay off as many customers may be discouraged by its high price - 111 yuan per kilogram.

Liu Xiang, marketing director of the company that produced the cake, said their cake was better in quality compared with other luxuriously packaged and high-priced mooncakes.

It is a traditional custom in China to eat mooncakes around the Mid-Autumn Festival, which falls on the 15th day of the eighth month on the lunar calendar, Sept 22 this year.