Durable & Waterproof：Our family suitcase set features sturdy watertight ABS external, which is easy to clean and long-term use. It can carry a large weight while having four swivel wheels that can move effortlessly in any direction.Built-in USB Port：All the sizes of luggage set feature a built-in USB port, Type C port, provide quick connection to your portable electronic device for a quick charge.Not worried about the phone is out of power any more.Multifunctional Holder Design：Especially designed water cup holder, phone holder located in top of luggage, and the handle hook, all is to provide a comfortable and convenient travel experience.Full-Capacity Design Inside Suitcase: Large storage space and fully lined interior with zippered compartment for this hard side luggage sets to keep your items well organized. Low profile top and side handle provide for ease in handling.Retractable Handle：The ergonomically designed push-button 3-step adjustable telescopic handle makes opening and closing a breeze. What's more, it fits any size hand and reduces stress when climbing stairs.