Triceps
Abdominals, Chest, Shoulders
Place hex dumbbell(s) on floor.
Assume high plank position, hands gripping dumbbell handle(s), close together under chest.
Keep body straight, core engaged.
Lower chest towards dumbbell(s) by bending elbows.
Keep elbows tucked close to body.
Push back up to start, extending elbows.
Repeat.