Traveler's Choice Elm Expandable Spinner Luggage Set 29" Large

This suitcase includes a TSA-approved lock, allowing airport security to inspect the luggage without damaging the lock. This is particularly useful for travel to and from the United States, where TSA inspections are common. The lock uses a combination, providing a deterrent against theft and unauthorized access.

This suitcase does not have a double wheel function. It uses single wheels at each corner. While single wheels provide good maneuverability, double wheels can offer enhanced stability and smoother rolling, especially on uneven surfaces or when the suitcase is heavily loaded. This is a minor limitation.

This suitcase features an expandable function, allowing you to increase its packing capacity by up to 2 inches. This is useful when you need extra space for souvenirs or unexpected items. The expansion is achieved through a zipper that adds extra volume to the main compartment, providing flexibility for different travel needs.

This suitcase does not include a brake function. A brake function locks the wheels to prevent the suitcase from rolling away on slopes or in crowded areas. The absence of this feature means you need to be mindful of where you place the suitcase to prevent it from moving unintentionally.

This suitcase does not have a USB port function. A USB port allows you to charge your electronic devices while waiting at the airport or during travel. The absence of this feature means you need to rely on external power banks or wall outlets to keep your devices charged.

This suitcase does not have a front open function. A front open function allows you to access items in the front compartment without fully opening the suitcase. This is useful for quickly retrieving documents or small items. The absence of this feature means you need to fully open the suitcase to access your belongings.