This luggage is made of heavy-duty aluminum alloy for strength and durability, able to withstand rough handling by baggage handlers. Its zipperless closure, rubber seals, TSA-approved combo locks, and ultra-smooth spinner wheels ensure your belongings are secure and easy to carry while on the go. The luggage also comes with a transparent protective suitcase cover. The aluminum alloy frame and reinforced corners are fixed by metal rivets for added security. The luggage is equipped with a TSA-approved combo lock, allowing for quick and easy customs inspection at airports in 44 countries. The spinner wheels are double row, 360 degree rotation, silent, smooth, and designed for easy movement on various surfaces.