20KG dumbbell set accessories 2.75LBS ( 1.25KG ) weights X 4 3.3LBS ( 1.5KG ) weights X 4 4.4LBS ( 2KG ) weights X 4 Dumbbell bar X 2 Kettlebell handle X 2 Kettlebell base X 1 Barbell foam connecting rod X 1 Barbell Mode In barbell mode, men or women often lift barbells to modify muscle lines, tighten muscles, modify body curves, and improve muscle endurance. Increase the ratio of muscle to fat and enhance muscle metabolism. Dumbbells Mode: Dumbbell Exercise Is Good For Strengthening Strength, Improving Endurance, And Increasing Muscles. Whether It Is Training Maximum Muscle Strength, Muscle Hypertrophy, Explosive Power, Or Muscle Endurance, Dumbbells Are The Most Basic And Comprehensive Training Equipment.