What does 2 Samuel 21:20 mean?

There was another battle at Gath, where a huge man showed up. He had six fingers on each hand and six toes on each foot—twenty-four in all. He was a descendant of the giants. 2 Samuel 21:20 - Modern Text Bible

(This verse introduces another Philistine warrior, physically remarkable and intimidating, emphasizing the ongoing threat from the giants in Gath.)