* Upgraded latest waterproof fabric--It is made of a custom fabric light but strong material which is water resistant and breathable,needn't worry about rainy day. polyester fabric inside,light, durable, wear-resistant and reliable. * 2 smooth and silent  wheels ---It can bear the luggage weighted  18kg multi-directional rolling and optional stability with very light weight on your hand. * Design: It can provide large space by increasing layered mounts to solve all baggage trouble.Maximum size fits airline checked luggage compliance and minimum size saves space for easy storage. * Multi-purpose --Ideal for moving house, children back to school, travel . Perfect for transporting and storing bulky items depending blankets, quilts, coats. * Luggage testing methods:different luggage , we have different kind of testing method ,depending on the requirements of our customers ,at the same time give reasonable suggestion to make sure the luggage is durable and safe for travel . Testing methods such as testing for all functional parts ,Hinge testing ,Application of load to the handles ,Drop test ,impact test ,wheel test,stacking capacity test, our factory have experience working with delsey and samsonite ,with these experience and the professional testing machine in our factory , the quality be greatly guaranteed * Service--If you are not satisfied with our products or services, we will unconditionally give you a refund.