【28 INCH DURABLE LUGGAGE】Kono 28 inch large checked luggage with overall dimensions of 30"x19.1"x11.8" (including wheels). The case interior dimensions：26.7"x17.5"x11". Made of ABS&PC hard shell with a scratch resistant finish, lightweight & water resistant, ensuring durability and strength for your travels. 【QUIET & SMOOTH TPE WHEELS】The suitcase features high-quality TPE wheels, which offer superior quiet operation, durability and longer life than traditional rubber or plastic wheels.The innovative 360° spinner wheel design grants effortless maneuverability, allowing you to glide through crowded spaces with ease. 【HIGH QUALITY ACCESSORIES】 The suitcase is equipped with a top-notch YKK zipper that guarantees seamless opening and closing, eliminating the frustration of jamming. The reinforced aluminum telescopic handle is built to last. The ergonomically designed top handles provide comfortable grip and are capable of bearing substantial weight. 【2 INCH EXPANSION DESIGN】The luggage is designed with a 2-inch expansion layer that instantly increases storage capacity by 20%, allowing you to fit more of your travel essentials. (Please do not use the expansion layer when bringing our 20 INCH luggage on board to meet standard airline size requirements). 【WORLDWIDE 5-YEAR WARRANTY】Kono hard-sided suitcases have passed an extremely rigorous quality control test and come with a 5-year warranty for complete peace of mind. This lightweight case is available in six trendy colours. Please don't hesitate to contact us if you have any questions about the product before purchasing. Hardside Carry-On Luggage