Bernstein laptop electronic service case bernstein 3215 this elegant case from bernstein combines a laptop style bag with an additional tool tray and is designed to serve the needs of mobile service engineers the case is divided into two bags each with zip fasteners and has loops on both sides for attaching the shoulder strap one section has pockets for storing cds usb sticks pencils etc while the other section is designed to accommodate documents and other literature bernstein 3215