Six-Wheeled Trolley Backpack Product Details Product Name: Pikachu Trolley Bag Applicable gender: neutral / male and female Applicable school age: primary school Material: Waterproof Oxford cloth Bag size: medium Capacity: 36-55L Inner structure of the bag: zipper pocket Opening method: zipper Function: waterproof, breathable, wear-resistant, burden reduction Lining texture: Polyester Accessories type: drawbar Lifting parts: telescopic handle Product Category: Schoolbag Read more The six-wheeled climbing design will not tilt or roll over, and can easily cope with various environments. Comfortable handle, easy to carry. Two-way zipper, smooth and durable, long service life. High-quality fasteners, safe and durable. Quality six wheels, sturdy and durable, easy to deal with various environments. High-density water-repellent fabric, waterproof and scratch-resistant. Don't worry about getting the contents of the bag wet in rainy days. Read more Quality pull rod The aluminum alloy rod can be stretched and retracted freely, and the bearing capacity is super strong, and it is not easy to deform, which can make you use it for a long time! Multifunction wheel When the three wheels encounter obstacles, they will exchange automatically. It's easy to climb stairs, and the road with poor walking conditions will be more stable! Buckle design The perfect combination of the backpack and the tie rods, the buckle design makes the backpack perfectly fixed on the tie rods, and no terrain can change the shape of the backpack. Read more