Every day we are using things for one purpose or another. But often there is a small detail on the item, that we don’t know why it’s there. Take a simple scalpel for example. Do you see lines on the blade? They are not for decoration.
Or, why is there a plastic disk under the cap of a soda bottle? Take a look at the video below and you will find the answer to these questions. Even more, you will see what is common for all the toilet paper types. No matter if the price or the design is different.
Tonnes of products have design features that are there to help the user. Watch the video to find out more.