To collapse, simply push from the bottom of the short sides to make the bins quickly fold flat; crates can be vertically stacked up to 3 high when open or closed with their interlocking nesting system design. Foldable containers can be utilized around the house, office, apartment, dorm room or RV; great for moving, as a makeshift laundry basket, a toy organizer for the kids or even as a recycling bin. Delivery by sea, it will takes around 40 days for arriving.