This is a polycarbonate shell cover that fits perfectly to the Sony WALKMAN A30 series. It protects against scratches and dirt. This shell cover is made of polycarbonate material that is both thin, lightweight and durable. It has a slim style that looks like you are not wearing a cover. The LCD screen does not cover the screen, so you can use it comfortably for typing, etc. You can attach the strap using the strap hole on the main body. This product does not come with a strap.