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2. Touchless Cans These modern cans use motion sensors to open the lid when you wave your hand near them. They offer convenience and limit contact with germs, making them ideal for health-conscious households.


Manhole covers date back at least to the era of ancient Rome, which had sewer grates made from stone.

The design and condition of manhole covers can also reflect municipal efforts in urban maintenance and management. In well-maintained cities, these covers are regularly inspected and replaced as necessary, ensuring they are effective and safe for public use. On the other hand, in neglected areas, worn or damaged covers may pose safety risks or lead to inefficient utility management, ultimately affecting the quality of life for residents. Thus, an awareness of manhole covers can encourage civic responsibility and prompt community investment in public infrastructure.