Sizer bin tested to fit in the overhead bins of most major domestic airlines while allowing for more packing capacity. 8 Spinner wheels rotate 360, providing superior maneuverability and a smooth glide in every direction Low profile top and side carry handles along with bottom grip provide multiple carrying options. Roomy main compartment expands 2 to maximize packing capacity when needed Lightweight, 100 percent Polycarbonate hard shell is engineered for impact-absorbing flexibility with a stylish outer finish that helps reduce visible scratches and scuffs. Built-in lock allows TSA authorities to safely unlock and relock the bag for inspection when needed (default code set at 0-0-0) Interior zippered divider panels and accessory pocket keep contents organized, separated, and secure while the interior lining with H20 guard is made of 100 percent post-consumer recycled plastic bottles to help reduce environmental waste Overall Dimensions: H: 23 in. W: 14.5 in. D: 9.5 in.; Case Dimensions: H: 19.75 in. W: 13.75 in. D: 9.5 in.; Weight: 6.3 lbs. Backed by Travelpro built for a Lifetime Limited Warranty with our Trusted Companion Promise which includes the cost of repair for damage caused by an airline or other common carrier for the first year after registration