Please consider this item only if you understand that it is a used item. I believe the exterior has no noticeable stains. The interior has some stains, so please judge from the photos. Size: Height: Approximately 23 cm Width: Approximately 31 cm Bottom width: 6 cm The shoulder strap is not removable. Shoulder strap length: 135 cm Front zipper pockets: 2 Back zipper pocket: 1 Inside zipper pocket: 1 Open pockets: 2 Pen pocket: 1 Please make your judgment based on the photos.