Add these Gold's Gym 4-lb Dumbbells to almost any workout. Walking with weights not only helps build stamina, but it will also help burn off those pesky extra calories. These aerobic walking dumbbells are made of cast-iron and covered by neoprene, so they are comfortable to hold even with sweaty hands. Their adjustable Velcro straps offer a secure and easy fit regardless of the activity you are performing and its duration. Tighten and tone your upper body and burn off those few extra calories with these walking dumbbells. They include a reflective strip.