Panel 5 seems to show an unopened 12″ zip tie pack. That will be too small to zip around two ankles or 2 wrists,

So the plan is to zip 2 thumbs or 2 big toes or a big toe and a thumb of an athlete while ginning up enough bravado and fine motor skills to fit the tiny end into the teeny slot. Looks like they practiced the process really well with the zip ties.