Features: Made of extra-thick ABS (thicker than the competition) for enhanced strength and durability. Protective hard shell with scratch-resistant finish; made of extra-thick ABS (thicker than the competition) for enhanced strength and durability Expandable for the luggage carrier offer 15% extra packing space . Wider aluminum trolley handle with sturdy grip, telescoping at multiple stages makes it easy and smooth whether to roll the luggage or store it in car trunks or closets. 4 double spinner wheels ensure smooth-rolling mobility in any direction