This product is a game-changer for industrial and scientific fields .The lightweight dolly with stair stairs and dolly wheels makes it easy to transport items, even up and down flights of stairs. The design is highly functional and durable making it a cost-effective SOLUTION that will last for years. The only downside is the price point may be higher than some other dolly options. Nevertheless, the benefits far outweigh the cost in terms of efficiency and safety. Overall, a fantastic investment for any business looking to improve its material handling process..