Dumbbells are often used for joint-isolation exercises such as biceps curls, chest flyes or shoulder…

Dumbbells are often used for joint-isolation exercises such as biceps curls, chest flyes or shoulder…

Dumbbells are often used for joint-isolation exercises such as biceps curls, chest flyes or shoulder…

Dumbbells are often used for joint-isolation exercises such as biceps curls, chest flyes or shoulder…

Dumbbells are often used for joint-isolation exercises such as biceps curls, chest flyes or shoulder…

Dumbbells are often used for joint-isolation exercises such as biceps curls, chest flyes or shoulder…