This is a Daiwa iso bag. It's a very convenient bag, good for carrying gear or fish. The zippers open and close without any problems. The dimensions are: external: approx. W50 x D30 x H32cm; internal: approx. W42 x D23 x H27cm. There are some scratches and dirt from use, but I think it can still be used actively. Please understand that this is a used item before purchasing.