It's the sheep's turn, or "Galaha", which is a game tool. Children in the north played with this when they were young. It's the kneecap of sheep's hind leg, and it can't be 10 cm long. . .

According to the requirements of the game, you should pick up four pieces of Galahad at the same time. If each piece is 10 cm long, not to mention children, even Yao Ming's big hand may not be able to pick it up. . . . . . .