Chinese customers are complaining about height restrictions at Metro, one of the world's largest supermarket chains.

Metro's rule that children shorter than 1.2 meters are not allowed to enter the supermarket has caused dissatisfaction among some parents.

In responding to this, Metro explains that the rule was made to prevent children from getting injured at the store, saying since its operational model targets group purchase by professional customers, there are many large vehicles carrying products inside the supermarket which may easily hurt children.

However, customers do not agree with this and have told local media they believe that the supermarket should take measures to prevent injury instead of setting a limitation on customers' heights.

Metro says that the limitation on height is a universal regulation.