The telescopic bag body is 40 cm wide and 45 cm high, the bottom length is 28 cm wide and 14 cm, and the reduced width and height of 40 is 30 cm, and the wheel height is 10 cm. Due to manual measurement, each person's measurement method is different, there are errors, and the actual size is the most important. Product material: 600D Oxford cloth, very durable. The fabric is reinforced with double layers, which are waterproof, anti-corrosion and anti-mildew. Wheels: PP wheels (foldable) Assembly and disassembly instructions: When assembling: Gently pull the wheel along the plastic track, and when you hear a "click", the wheel will automatically open for assembly. When disassembling: slide the U-shaped bracket along the plastic track to fold the wheels, and the bag can be folded after the wheels are folded to the left and right. Foldable trolley: Made of high-quality thick oxford fabric. Wide shoulder straps with foldable wheels. Very solid. It is a versatile bag. Prevent body wear. Foldable for easy storage. It can be folded and stored in the closet when not needed. Design: Foldable wheels can be folded between shoulder bags or extended to full size as a shopping cart. The rollers and metal brackets are cleverly hidden, and the storage bag can be folded and stored, which is convenient to carry and does not take up space. Function: all needs for shopping, travel, vacation, camping, hiking, beach, picnic, laundry, luggage, school supplies, etc. A must-have fashion bag for all ages, including shops, students, office workers, etc. This is an environmentally friendly and stylish reusable shopping bag that lets you add items quickly and easily.