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 Space saving with Expanded size: 58 x 44.6 x 27cm and its height just 7 cm after folds, save over 70% space when storage Perfect design, which all the wall and angles stand relatively straight and without deform Perfect for laundry and storage container for toys, clothes and keep in the trunk of your car