10 Arm-Sculpting Dumbbell Exercises to Build Muscle

Muscles skull crusher works: triceps

• Grab a set of dumbbells and come onto your back with your knees bent, feet flat on the floor.
• With one dumbbell in each hand, raise your arms so they are above your chest, making sure your elbows are straight but not locked. This is the starting position.
• Slowly bend both arms, lowering the dumbbells by your ears, so your elbows are at 90 degrees.
• Straighten your arms, coming back to the starting position. This counts as one rep.