Manufacture Minimum Age: 3 Years Old 【Rolling Backpack Size】: Kids rolling backpack: 18"x13.7"x7", lunch bag: 9"x8.2", The rolling backpack with unique 6 wheels design, sliding fast, not stuck, wear-resistant, Can climb the stairs. It is the best choice for kids who start new semester gift. 【Large Capacity Backpack】: Boys rolling backpack is spacious enough for all your kid's school supplies.Roomy main compartment can hold textbooks, magazines, A4 files; 1 padded laptop pocket; 2 meshed side pockets can hold a water bottle and an umbrella; 3 Front utility pockets keeps the essentials easily accessible. 【Multifunctional Boys Backpack with Wheels】: Our rolling backpack is detachable. Not only can be used together with a trolley can also be used alone backpack. The bag itself is very light, can reduce the burden of children, very suitable for daily use. And you can use it in different occasions, the children will love it! 【Occasion Use】: This rolling backpack is firm and reliable but not bulky. Can be backed and pulled, suitable for boys going to school, picnics, traveling, hiking, camping, tourism and other scenes. 【Great Gift】: This rolling bookbag comes in a variety of styles to reflect your preferences & needs. As the first choice for birthday gift, school gift, graduation gift, Christmas gift, Thanksgiving gift...