The bags are made of high-quality polycarbonate material, which is exceptionally resistant to chemicals and abrasion. This makes the luggage very durable and long-lasting. Each bag also has a separate number lock to ensure the security of your belongings. The bags come with a built-in telescopic handle that can be extended or retracted as needed. This makes it easy to roll the luggage along behind you, or to carry it by the handle when necessary. The handle also has two different height settings, so you can adjust it to the most comfortable position for you. https://www.nashermiles.com/products/luggage/hardside/nasher-miles-dalhousie-hard-sided-polycarbonate-check-in-luggage-lavender-28-inch-75cm-trolley-bag-2