Live hairy crabs are displayed in a vending machine at a main subway station in Nanjing, Jiangsu province Dec 17, 2010. The crab dispenser was designed by Shi Tuanjie, Chairman of the Nanjing Shuanghu Crab Industrial Company, who came out with the idea of a crab dispenser 3 years ago. This is the first live crab vending machine in China, and was installed on October 1 this year. The crabs cost from 10 yuan ($1.50) to 50 yuan ($7.50), depending on size and gender, and customers are promised a compensation of 3 live crabs if their purchase is dead. The machine sells an average of 200 live crabs daily. Shi plans to popularize the machines on a larger scale to airports, residential areas and supermarkets, according to local media.