Constructed from durable PP material, providing strength and impact resistance for long-lasting use. Aluminum Trolley System: Equipped with an aluminum trolley system featuring a convenient push-button mechanism for smooth and effortless handling. Carry Handles: Features top and side carry handles for easy lifting and maneuvering, offering versatility in transport options. TSA Combination Lock: Includes a TSA-approved combination lock for added security and peace of mind during travel, ensuring your belongings are protected. Spinner Wheels: Designed with four double spinner wheels that provide 360-degree mobility, allowing for effortless navigation through crowded airports and tight spaces.