https://www.rs-outdoor.com/product/climb-stairs-shopping-trolley-bag/flat-head-climb-stairs-threewheeled-shopping-trolley-cart-shelf.html
This climb stairs three-wheeled shopping trolley cart shelf is paired with the more common flat head handle with a wide grip for greater durability.
The three swivel wheels are designed for stair climbing ability and the wheels are suitable for a variety of terrains.
Easily foldable for carrying and storing on the go or at home.