This is a Monolock case from GIVI, a famous Italian brand, the most widely used brand for motorcycle rear boxes, hard cases, and pannier cases (top cases, side cases). This one was used on a 125cc scooter, Address V125S, so it has the Suzuki logo. Capacity is unknown. Actual dimensions are: width 39cm, depth 40cm, height 31cm. Please note that these are approximate measurements, and there may be some slight variations. It shows signs of use, but there are no cracks and it is still usable. Also included are two keys, a base, and four mounting brackets (see image 6). Thank you.