Carry-on Size (Japanese airlines excluding LCCs) This hand-luggage size suitcase can save you time during complicated check-in procedures and while waiting for pick-up. This original Nippers hand-luggage size suitcase allows your child to ride on it and wheel by themselves or you can pull it with your child on it! Made from renewable polycarbonate material The body of the product has acquired the RoHS mark, which is given to products that contain less than the EU's standard amount of certain harmful substances. You can use it safely even if your child accidentally licks it or puts it in their mouth. With TSA lock and USB port TSA locks are locks approved by the United States Transportation Security Administration. Even if your luggage is full of souvenirs when you return home, you can safely leave it there. It also comes with a USB port, so you can show your child videos on a tablet or smartphone when they get bored while traveling or waiting, or charge it in an emergency. *Cables and mobile batteries are not included. Double Casters Adopts duble casters with a double-layer structure to allow smooth movement. It moves easily even when your child rides on it, ensuring that they can enjoy a smooth ride. Caster Locks You can easily lock the casters by pushing the button with your foot! The caster locks provide you with peace of mind, by preventing your child from rushing out or rolling on trains and Shinkansen trains, and when using it on gentle slopes. * The specifications of the locks are subject to change. Large Capacity of 32 Liters Plenty of storage space for your child’s belongings that often get lost. You can purchase souvenirs that end up accumulating while traveling, without worrying about the weight of carrying them. An easy-to-move, rocking-horse-like ride-on suitcase for traveling! It also greatly serves as a toy when your child is bored! This suitcase allows you to move smoothly with your child on it. You can use it in a variety of ways, such as letting your child wheel by themselves, pulling it with your child on it, or having your child use it as a bench. This product from Nippers is carry-on sized for Japanese airlines, but has a large capacity of approximately 32 liters (about 4 nights’ worth of clothes for your child).