Zero Halliburton Geo Aluminum 2.0 Carry-On 2-Wheel Travel Case Silver Utilizes premium Anodized Aluminum that is as strong as steel but only one-fourth the weight. Innovative and unique Double-Rib Design provides additional strength and durability as well as optimum protection of its contents. Designed to securely close using two TSA-Accepted Combination Locks that are integrated into the Draw-bolt Latches. Seals airtight with the addition of a Neoprene Gasket Seal around the opening's perimeter. The intuitive 3-stage dual-button handle system allows for quicker release for both left and right-handed travelers.