Hey, what’s up? I am, the unique 3 Wheels -Wheeled Backpack by SJ. I have shockproof body and reinforced rigid bottom for maximum safety and contents protection. In addition, I am ultra-large, comfortable and safe to wear thanks to the padded and fabric-covered back and shoulder straps. And thanks to the CROSSOVER SYSTEM, when you lift the extremely resistant double telescopic bar with the two height adjustments, the shoulder straps are automatically raised too, in order to not crawl on the ground. Finally, with the 3-wheel system, you can easily climb stairs and dragging me along all the paths of your day. It is really easy and fun. Let’s go together!