VILINKOU - The Best Rolling Backpack Size: 37(L)*23.5(W)*50 cm(H)/14.6(L)*9.2(W)*19.3 Inch(H)Weight：4.3 lbThe rolling backpack is suitable for elementary school students secondary school students and college students and adultsOur trolley bag applications for school, work and travel etc. Multiple Zipper Pockets, Versatile Pockets Large capacity main pocket with computer compartment pocket for large items such as books.Front zipper pocket for cell phones and other easy-to-reach items.Front zipper pocket for odds and ends.With a variety of small pockets for keys, pencils, and other items that can not be easily lost.Side pockets for umbrellas, cups, and other items. Details Drawing of Rolling Backpack Disassembly design can be used as a schoolbag back, which is very convenient.The thickened sponge design grip is more comfortable and protect your hand.Two way zipper head, smooth and durable, with long service life.The bottom buckle design is more convenient, and the schoolbag is fixed on the base.Thick sponge shoulder straps, more breathable and comfortable, protect children's shoulders.Six wheel design makes climbing stairs easier and travel more convenient. Place the trolley accessories on the table or ground;Use a screwdriver to unscrew the screws attached to the pull-rod;Then insert pull-rod into the hold in the base;Tighten the screws, finish trolley;Put the rolling backpack in and the trolley passes through the back cushion of the backpack;Fasten the bottom buckle;The whole rolling backpack is completed. Great Gift for your family or friends Luggage ,Backpack, Handbag three in one If you go to school ,or travel,you can use it as a luggage, and sometimes you can use it as a backpack or handbag. You can have 3 ways to go to outdoor after you get it.It is very suitable to be placed on the aircraft luggage rack. Material Fabric: nylonLining: polyesterStyle: Backpack, handle, trolley wheels bag Package 1 * Rolling Backpack