【Ergonomic Dual-Handle Design】This stair-climbing hand truck is equipped with two convertible non-slip handles. It allows you to pull or push comfortably, with free adjustment to the optimal grip height for effortless maneuvering.【TPR Triangular Wheels】The innovative triangular wheel design, paired with 6 durable TPR silent wheels, completely solves the problem of traditional hand trucks climbing stairs. It enables you to easily move up and down stairs as well as transport items on flat ground.【Super Strong Load Capacity】Featuring an integrated aluminum alloy frame, it is sturdy, durable and long-lasting. The load capacity reaches up to 600 pounds on flat ground and 330 pounds when climbing stairs. This stair-climbing hand truck is an ideal choice for transporting extra-large or heavy items anytime.【Upgraded Extended Design】Based on the traditional frame, an innovative extended frame is added to significantly improve stability during transportation, delivering a more practical and efficient user experience.【Wide Application】This heavy-duty stair-climbing hand truck is perfect for indoor and outdoor handling tasks. It can be used for goods transportation in homes (for moving), offices, warehouses, factories, shopping malls and other places, serving as a reliable solution for cargo transport in various environments.