Popsugar Fitness Workouts Quick Dumbbell Arm Workout All You Need Is 4 Minutes and 2 Dumbbells to Completely Tone Your Arms June 27, 2018 by Jenny Sugar View On One Page Photo 7 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Bicep Curl Start by holding a dumbbell in each hand at the sides of the body. Keeping your elbows close to your side, slowly raise the dumbbells to your chest. Moving with control, lower back to the starting position. This counts as one rep. Do as many reps as you can with proper form for 30 seconds. Previous Next Start Slideshow WorkoutsStrength TrainingBeginner WorkoutsDumbbell Workouts5-Minute WorkoutsArm Workouts