Why choose this folding durable utility cart 1 Convenient tool to transport items on the go. The fashion appearance let you can use it in any occasion without out of style. 2 Unique 4 detachable wheels with 360rotate technique easy to push or pull or change direction . 3 Aluminum alloy telescoping handle allow it to be used in a comfortable way for different height people more convenient. 4 With lid it can be used as seat or step stool if needed just remember pressing the brake button in rear wheels to stop the trolley from sliding away. 5 Perfect rolling utility cart crate 4 rotate wheels for teachers or students to carrying books files or as storage container. Specification Material: polypropylene case aluminum alloy handle rubber wheels Fold Box Dimension: 15.75A—15A—3.35inch (40A—38A—8.5cm) Unfold Box Dimension: 15.75A—15A—14.17inch (40A—38A—36cm) 3 Adjustable Handle Height: 20 inch(51cm) 31 inch(78cm) 41 inch(105cm) 4 Removable 360Rotate Wheels (2 Rear Wheels have brake button) Wheel Diameter: 2.17inch(5.5cm) Package List 1 Folding Utility Cart Note 1 Before using it please assemble the wheels first put the wheel correctly into the hole of the bottom of the dolly you will hear a click sound if you finished remember installing the wheels with brake button as rear wheels. 2 When unfolding it please remove the lid from the front loosen the side fastening buckles to unfold the case put down the bottom panel and slide the side sliding lock to the middle to turn the cart into a stable box shape. 3 Please do not forget to put the bottom panel back and slide the side sliding lock into their original place if you need to fold it. 4 Please do not transport overweight item to ensure a long use.