Made of a lightweight polycarbonate composite with a brushed metal textureDurable and stylish metal corner guards Metal corner guards Features a fully-lined interior with zippered divider, buckled compression straps and zipperedpockets Flush mounted built-in TSA combination lock Zipper-released expansionsystem allows for an extra 20% in packing capacity Gel-cushioned top and sidehandles Lightweight colour-matching aluminum push-button telescopic handlesystem with multi-stage locking heights 360 spinner wheels allow foreffortless motion in different terrains