This 20-inch backpack on wheels for girls, kids and adults converts from a rolling backpack for kids and adults into a wearable carry-on backpack with shoulder straps. There’s a place for everything with 2 large compartments, 3 exterior zipper pockets, 2 mesh pockets, plus internal pockets, key clip and pen/card slots for keeping small items secure. This rolling backpack for adults and kids easily carries a computer laptop, 3" binder, 3 college textbooks, notebooks, portable hard drive and lunch with room to spare. Fully-padded interior 15.6” laptop case compartment is designed to keep your laptop safe. Fits most laptop computers up to 15.6-inches—designed from the bottom up to be a rolling backpack laptop bag. This adult and teen kids rolling backpack has an overall measurement of 20 x 13 x 9 inches. Single-tube aluminum handle extends to 34 or 39 inches for easy maneuverability by kids and adults up to 6’ 3” tall. Handle stores nested in this rolly backpack for girls. The bag quickly converts from a roller bookbag for girls and adults into a wearable school backpack. Backpack straps pull out in seconds when going up stairs or over rough ground. Straps easily tuck away in back pocket when rolling—no having to unzip. Rubber backpack wheels roll and turn effortlessly on sidewalks, paths and airplane aisles. Corner mounted wheels provide extra stability. Made of durable ripstop polyester fabric with a metal frame, reinforced edges and a molded rubber bottom to protect against abrasion, this roller bag for school features a water-resistant coating that keeps your gear dry. Works well as a rolling backpack for girls for school, a rolling laptop backpack for kids with laptop compartment, or as a large book-bag on wheels for teachers or nursing students. At J World, we stand behind our products 100%. If you have any issues with this large roller backpack for women, men and kids, we will make things right.