The dumbbells of Zheng Duo Yanbazhou Weight Loss Plan are adjustable, with the weight ranging from 5 kg to 12.5 kg, and a pair of dumbbells ranging from 10 kg to 25 kg. Dumbbells for demonstration are 5 kg and 10 kg.

It is suggested that when choosing dumbbells, choose the right dumbbells according to your muscle strength.

Duoyan Zheng dumbbells for reducing fat can be selected above 30RM.

Excuse me, where is the violation? This is entirely based on the problem. If you can't give an explanation, I'll complain about your abuse of power.