The lifefit foam dumbbells 2 x 0.5 kg are a modern solution for active aerobics. The dumbbells are coated with a layer of special fine foam and are equipped with simple fastening straps with a velcro system. These straps then allow the dumbbell to be securely fastened to the palms during exercise, making the workout more effective overall. The lifefit foam dumbbells are suitable for all types of aerobic exercise.