Cute Schoolbags Rolling Backpack with Wheeled Trolley Hand for Kids Girls Boys Material:High density Oxford,waterproof Polyester lining Size:12.2 inch x 6.7 inch x 18.5 inch(L x W x H),weight:1.7 kg.Capacity: 20L-30L Convertible between a backpack and rolling bag Recessed three stage locking handle with push button Large enough to accommodate iPad,14 inch Laptop,A4 Pape,Magazine,Folding umbrella,ect. Soft and noiseless wheels for stable and controlled motion