The body of the telescopic bag is 40cm wide and 45cm high, the bottom length is 28cm wide and 14cm, and the reduced width and height of 40 is 30cm, and the height of the wheel is 10cm. Due to manual measurement, each person's measurement method is different, there are errors, and the actual size is the main one. Product material: Oxford cloth 600D, very resistant. The fabric is reinforced with double layers, which are waterproof, anti-corrosion and anti-mildew. Wheels: PP wheels (foldable) Installation and disassembly instructions: When installing: Gently pull the wheel along the plastic groove, and when you hear a "click", the wheel will automatically open for installation. When disassembling: push the U-shaped bracket along the plastic groove to fold the wheels, and the bag can be folded after the wheels left and right folded. Folding 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 up and stored in the closet when not needed. Design: Foldable wheels can be flipped between shoulder bags or extended to full size like 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 the 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 eco-friendly and stylish reusable shopping bag that allows you to add items quickly and easily.