Co-garbage bin / office

When the garbage bin is filled,people are accustomed to compact the trash with their foot .
The advantage of this garbage bin is that it can compress garbage to realize the full use of garbage bags.
So it can protect environment in a sense .The pedal on this garbage bin has two functions.One is to open the garbage bin. The other is to compress the garbage. They can be realized by turning the pedal to the rightdirection before you step.