Whether you're looking to tone your body or bulk up, our assortment of dumbbells varies in weight to complement your personal exercise program. Lightweight dumbbells, ranging from 1 - 5 pounds, can be used in conjunction with aerobic workouts, like walking on a treadmill or riding a stationary bike. For bodybuilding exercises, heavy dumbbell weights are available to help you increase muscle mass. No matter the dumbbell weight you use, seek out dumbbells with rubber materials to protect your floors from accidental drops. Dumbbells with ergonomic handles provide a comfortable grip as you pump iron, while weights with hex designs prevent the dumbbell from rolling in between reps.