You can make your own dumbbells at home. First of all, you need to prepare the required materials, that is, strong wooden sticks, and then there is a proper amount of cement to find a used milk powder tin can. Cut the stick to the right size and nail it at both ends. Then saw off half of the prepared milk powder tin can, put the half of the milk powder tin can at both ends of the wooden stick, add a proper amount of cement, add a certain proportion of water, and smooth the surface after mixing and stirring evenly. After leveling, it can be placed in a dry place until the cement dries and solidifies, so that the simple dumbbell is ready. Dumbbell is a kind of fitness equipment with various weights, which is a common instrument for muscle strength exercise.

Dumbbell, English name dumbling, is an auxiliary equipment for weightlifting and fitness. Smaller than a barbell. The weight of the light dumbbell is 1, 2, 3, 5, 8, 12 lb, 1 lb =0.4536 kg) and so on. The weights of heavy dumbbells are 10, 15, 30 kg, etc. Because there is no sound during practice, it is named dumbbell.

Dumbbells are used for muscle strength training and muscle compound action training. Patients with low muscle strength due to sports paralysis, pain, long-term inactivity, etc. Holding dumbbells, you can use the weight of dumbbells to actively exercise against resistance and train muscle strength.

Dumbbells can train a single muscle; If you increase your weight, you need the coordination of multiple muscles, and it can also be used as a kind of muscle compound action training.

Dumbbell is an auxiliary equipment for weightlifting and fitness. There are two kinds of fixed weight and adjustable weight. ① Dumbbell with fixed weight. Cast with pig iron, with iron bars in the middle and solid balls at both ends. ② Adjustable dumbbells. Similar to a reduced barbell, round iron pieces with different weights are placed at both ends of a short iron bar about 40 ~ 45 cm long, which can increase or decrease the weight during weightlifting or fitness exercises. Doing dumbbell exercises often can enhance the muscle strength of all parts of the body.

Besides iron dumbbells, there are wooden or plastic dumbbells. When practicing, use the tapping sound of wooden dumbbells or plastic dumbbells to cultivate the coordination and rhythm of the practitioners. You can also weave wooden dumbbells into a complete gymnastics performance.