1. The main body of the product adopts 300D cationic fabric, which is strong, wear-resistant. 2. The product features a four sided mesh window design, which provides excellent breathability。 3. There is a movable wooden floor at the bottom of the product, which is sturdy and has good load bearing. 4. The product can be folded and stored when it is not in use and does not take up space. 5. Product backpack design, liberate hands, go out more labor-saving and convenient.