Small Coil Springs
Small coil springs are springs that are used in very small slots. These coiled springs can literally be as small as your pinky. These springs are crucial for the protection of many different products that use small screws and are usually just smaller in general.
A phone for example is a device that will usually have incredibly small screws built into the device. Devices similar to the phone, will usually carry small coiled springs.
Computers are usually filled with all sorts of smaller springs. The smaller springs are way more affordable, due to the lack of metal but they do a great job getting things done correctly.