The envelope is in the picture. Fits perfectly on my 17 "MacBook Pro and protects the unit properly The shell is in two parts -. A part of the display, the other for the rest - and is fastened with small, hard, clamps on the edge of the device, the click in automatically when you the shell it expresses. The material from which the shell is hard enough to protect, yet enough to create flexible when mounting no scratches. All openings of the device are free, and the shell is transparent enough to the battery indicator on the left still easily recognizable let shine through.
