Thank you for viewing. Width 23cm, Height 14.5cm, Depth 3cm, Shoulder strap 51cm Please consider these measurements as approximate, as they are taken by hand. I believe this item can be used by a variety of people, from children to adults. I don't see any flaws, but there may be oversights. I am a smoker. Please purchase if you understand that this is a used item. I may change the shipping method to Yu-Yu Mercari. Thank you very much.