Arm frontal lateral raises are a strength training exercise that primarily targets the shoulder muscles, specifically the anterior (front) and lateral (side) deltoids. To perform this exercise, stand with a dumbbell in each hand, palms facing your body, and raise your arms out to the front and to the sides until they reach shoulder level. Arm frontal lateral raises are effective for enhancing shoulder strength and can help improve overall shoulder stability and definition when incorporated into a well-rounded workout routine.