The Delsey Montmartre Air has four multidirectional and silent double wheels. Traveling to the four corners of the world and traveling through airports is a pleasure thanks to their driving comfort. No more suitcases damaged by customs! The TSA combination lock allows you to secure your luggage with your personal code while letting the Transport Security Authority (TSA) check it without damaging it with a specific key. Your luggage is equipped with the ultra-secure closure system patented by Delsey, the SECURITECH® 2 zip. This unique closure is three times more resistant to intrusion than a conventional zip and offers optimal security for your luggage. The zippers are also reinforced, making them up to three times stronger than standard zippers. The TSA combination lock and the original anti-theft zip are your best allies for safe travel.