What is that hes got in his hand?

Check the video from the Tough Mudder that Pat Zee Jaz Carlos and Enriq went to!

WOD

50 deadlift @ 135/95
100 sledgehammer strikes (50 each arm)
50 pullups
100 sit ups
50 hang power clean 135/95
100 m farmer carry 70lb
50 burpees
100 double under