We all know the concept that people generally like natural things. Take advertising mouse pads as an example. Users often choose natural rubber advertising mouse pads, but they don't know how to distinguish between natural rubber and recycled rubber. The following methods may help you find the correct answer to this question.

1. Observation: The embossing of the natural rubber advertising mouse pad is octagonal, while the recycled rubber advertising mouse pad is T-shaped, round or diamond.

2. Press: The natural rubber advertising mouse pad is harder than the recycled rubber advertising mouse pad.

3. Smell: The smell of natural rubber advertising mouse pad is lighter than that of recycled rubber advertising mouse pad.