This case is designed specifically for the Micro-Bit version 1.
Made from transparent acrylic sheets, these cases come with a special paper to diffuse the color and protect the sheet. You need to peel off the sticker to get that transparent look.
This case comes with four plates, one top with the cut out for the buttons, one bottom plate with the cut out for the micro usb and jst connector and two side plates for the spacing. You are also given four Philips screws and four hex nuts with the diameter of approximately 3mm.
The bottom plate also has two hoops for mounting to a board or fixture using some M3 screws that are sold separately.