This is a clear case with a 4-size expansion that can be used for various purposes. This is size SS. It is a size that can hold wireless earphones, charger cards, small coins, and smart keys. It uses PVC material, which allows you to quickly wipe off water and dirt. If you remove the button on the back, the front opens and it is easy to take things in and out. Since it comes with a carabiner, you can attach it to a rucksack, etc.
