【Perfect Size】Lightweight hard shell kids luggage and backpack, hard shell made from ABS Plastic. Luggage size is 18.0” x 11.5” x 8.0” (includes wheels and handle). Backpack size is 13.0" x 10.0" x 4.5". 【Light Weight Design】 Is not overly heavy and will not be an extra burden to children. The perfect luggage set to bring on Airlines, Weekends Away or Sleep-Overs. The backpack will make a great, cool school bag. Easy for kids to carry this backpack and to pull the rolling luggage themselves, allowing them to cultivate independence. 【4 Multi-Directional Wheels】 Supports 360 degree rolling, super easy for mobility. You and your kids will find it very easy to pull and push.