1. Prepare a wooden stick (the length can be selected according to your own preferences), and nail both sides of the stick after determining the length.

2. Use a tin saw made of milk powder and cereal to make half. After the container is determined, pour cement and water into the container.

3. After mixing, put the sticks into the containers on both sides, wait for drying, and finish after drying.

Extended data:

Dumbbell, English dumbbell, is an auxiliary equipment for weightlifting and fitness. Smaller than a barbell. The weight of light dumbbells is 6,8, 12, 16 lb (1 lb =0.4536 kg) and so on.

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.

References:

Baidu encyclopedia-dumbbell