Approximately 50cm wide and 50cm long. I'm giving this away as I don't use it. Extension is possible. There appear to be no stains or dirt, but I apologize if I missed anything. Stored at home. The fabric and color may appear slightly different due to taking photos with a smartphone. Please refrain from purchasing if you are particular about this. Please understand that there may be some minor dirt or folds. Please refrain from purchasing if you are sensitive to this. I can send it with other items, so please comment. Type... Fabric/Cloth