Nick Jr. Diego The Rescuer Rolling Backpack W/ Bonus Luggage Tag - Kid size Diego School Backpack easy maneuver handle extends up to 23"H size approx 8"W x 10"x 4"D, recommended for age 2 to 5yrs rolling wheels on the bottom makes carrying toy and adventure supplies a breeze padded shoulder straps on the back, makes it easy to carry on the bumpy roads