The maintenance period is within three years from the date of receipt of the product. Wheels, pull rods, zipper heads, handles, password locks (other parts are not covered by maintenance) We will send you the relevant accessories .If you encounter any problems during use, please link us at any time and we will within 24 hrs do our best to serve you . Global best-selling over 1 million Pieces Hanke Top Opening Series Hanke Front Opening with Laptop Compartment Series ·Welcome to the Hanke-International leading travel luggage brand. Since 2001, Hanke has been committed to delivering a superior ownership experience to its customers. ·Hanke has its own production base, R&D center, production workshop, professional testing center, warehouse and other related supporting centers. ·Thank you for choosing Hanke. If you encounter any problems, please feel free to reach us through Amazon. Wish you a happy life. Top Opening luggage Underseat Carry On Front Laptop Pocket Expandable Carry On Family Camping Luggage Top Opening luggage Front Laptop Pocket Hanke 20 Inch Expandable Carry On Luggage Airline Approved Top Opening Hard Shell Suitcases with Wheels Lightweight Travel Luggage Carry On Suitcase for Woman Men Top opening luggage-you can quickly open it with just one hand ,the travel luggage design also offers convenience to elderly users or people with limited strengthit's and also especially suitable for tight spaces like airplane aisles, allowing you to take out or put back items quickly and easily Expandable luggage-The hard case luggage with expandable design can increase storage space by up to 2", flexibly meeting your needs. We belive this expandable carry on luggage will create a stress-free, organized packing experience for you Expandable luggage with 15.6in Laptop compartment and the rolling suitcase features a deep, integrated main compartment and multiple storage compartment , so you can safely store large items while keeping all your belongings in their proper places, neat and orderly Tsa approved carry on luggage comes with a built-in TSA-certified combination lock. This internationally recognized safety design allows Customs officials to inspect the case without damaging the lock, Tsa luggage protecting your valuables while avoiding travel disruptions caused by broken locks