This is a cover that you put on like a sock. It's very thick. The knitting and fabric are carefully chosen to prevent scratches on digital devices. It's stretchy like knitwear, so it fits a variety of items. However, it doesn't have a lid, so it's suitable for things that can be completely enclosed, or you'll need to make your own adjustments. (For a MOTOROLA g30 smartphone, it covers about two-thirds of the phone) It comes with a carabiner and strap, so there are many ways to use it. (See the images) The size is about 12cm x 7cm (body only). Please be sure to read the profile. Thank you.