Costway Gray Folding Stair Climbing Shopping Cart with Removable Bag and HandleCostway Gray Folding Stair Climbing Shopping Cart with Removable Bag and Handle Features The lightweight aluminum base can hold up to 66 lbs Easy to fold and store in space limited places Comes with non slip base for easy placement The polyester bag's machine washable design will save you from the hassle of hand washing EVA wheels are suitable for a variety of different surfaces 2 triangle wheel structure can climb stair easily Ergonomically designed