The superset workout to pack size on your shoulders

Lower the kettlebells for 3 seconds, and explode them back up in one second. 

Sets: 3

Reps: 8

Rest: 60 seconds

Hold two kettlebells just behind your shoulders, palms facing forward. Squat down slightly before quickly straightening your legs and extending your arms above your head. One your arms are straight, bring them back to your shoulders and repeat.