I'm selling this because my brother-in-law used it and said I could sell it. Therefore, I do not know how many years it was used. There are some scratches, but it's not worn out, and I think it's generally clean. Includes a Pro Marine air pump, float, and fish bone tweezers. I'm not sure how to use the air pump, so I haven't checked if it works. External dimensions (cm): Approximately 21 x 31 x 28 A keeper bag that can keep fish like horse mackerel, squid, and scorpionfish alive. Features an inner lid with a zipper for draining water and putting in fish. An inner lid with a water return to prevent water from spilling during transport. A front pocket that can store a water bucket up to 19cm. Includes a multi-holder that can hold rods and pliers. Air pump holder and tube hole included. The top lid has a 30cm ruler for measuring fish length. Thank you.