The long arms of the world’s tallest man reached in and saved two dolphins by pulling plastic material out of their stomachs, state media and an aquarium official said Thursday.

The dolphins got sick after nibbling on plastic from the edge of their pool at an aquarium in Liaoning province. Attempts to use surgical instruments to remove the plastic failed because the dolphins’ stomachs contracted in response to the instruments, the China Daily newspaper reported.

Veterinarians then decided to ask for help from Bao Xishun, a 7-foot-9 herdsman from Inner Mongolia with 41.7-inch arms, state media said.

Bao, 54, was confirmed last year by the Guinness Book of World Records as the world’s tallest living man.

Chen Lujun, the manager of the Royal Jidi Ocean World aquarium, told The Associated Press that the shape of the dolphins’ stomachs made it difficult to push an instrument very far in without hurting the animals. People with shorter arms could not reach the plastic, he said.

“When we failed to get the objects out we sought the help of Bao Xishun from Inner Mongolia and he did it successfully yesterday,” Chen said. “The two dolphins are in very good condition now.”

Photographs showed the jaws of one of the dolphins being held back by towels so Bao could reach inside the animal without being bitten.

“Some very small plastic pieces are still left in the dolphins’ stomachs,” Zhu Xiaoling, a local doctor, told Xinhua. “However the dolphins will be able to digest these and are expected to recover soon.”