1. Dimensions (Length * Width * Height): 14.2 * 7.5 * 20.1 inches. Weight (Pounds): 4.2. Comfort: Made of durable, waterproof and eco - friendly polyester fabric, which effectively prevents scratches and tears. It comes with an adjustable and detachable aluminum alloy handlebar and quiet and durable wheels, ensuring all - day comfort. The handle is thickened and padded for pressure reduction, making it easy to grip and hang. 2. Practicality: It's a two - in - one product! It can be used as a stroller or just an ordinary backpack. If your child doesn't want to use the stroller, simply remove the rolling platform and it will turn into an ordinary backpack. The rolling backpack can help students reduce their burden, which is beneficial to the healthy growth of children. 3. Large capacity: It features a multi - pocket three - dimensional design with clear categorization. There is a simple front pocket, and the elastic mesh fabrics on both sides are integrated with the main bag. It has convenient functions for organizing and tracking items. The personalized and minimalist design is very suitable for middle school students. 4. Design: This stroller is equipped with 6 durable shaped wheels, allowing you to easily adapt to various terrains and climb stairs. Two regular wheels are suitable for flat roads. It is very convenient for children carrying heavy items when going out or going to school.