Using hand weights can not only increase your flexibility and build muscle mass, but help in successfully losing weight. Add a little resistance to your cardio workout by carrying hand weights, increasing the number of calories you burn. Carrying hand weights while walking allows you to work your upper body more than standard walking, while moving the weights will recruit muscles in both your lower and upper body. Increase the intensity of your workout and the amount of calories burned per minute with this ideal fitness accessory 0.5kg = pink 1.0kg = purple 2.0kg = blue 3.0kg = grey 4.0kg = dark blue Please note: These hand weights are sold individually and not as a set.