Dumbbells are small weights. You purchase dumbbells in different weights, starting with lightweight versions -- less than five pounds -- to use during aerobic workouts or while using a treadmill or exercise bike. Heavy Dumbbells are inexpensive, versatile and easy-to-use weights that let you create a variety of workouts to improve your health. Depending on the amount of weight you use, a number of repetitions you do and pace at which you use them, dumbbells can help you improve cardiovascular fitness, burn calories, build muscle or increase muscular endurance for sports.
NOTE: 10kg at the right-hand side and 10kg at the left-hand side, make a total of 20kg.
