Patent: US 9,926,105 B2 ; DE 20 2014 101 047 U1 ; ZL 2014 1 0386688.1 BPA Free. User friendly by simply pop-up to open when using and collapses to flat for space saving with Expanded size: 14.75 x 9.8 x 8.3 (h) inches and its height just 2.1 inches after folds. Save over 70% space when storage. Perfect for cleaning, especially cleaning window with squegees Compact size with comfort grip handle for easy carry and storage Great for camping, hiking, picnics and outdoor use.