Lie flat on the bench so that your head, upper back, lower back, and both feet are firmly pressed against the bench and ground at all points while holding two dumbbells at shoulder level with an overhand grip.
Exhale and push both of your hands up and towards each other.
Exhale as you squeeze your chest and push the dumbbells up until your arms are fully extended.
Continue pushing until your arms are fully extended and just before the dumbbells meet.
Inhale and return the dumbbells back down to the starting position.