Portable-metal/plastic connector, thickened connector with multiple rivets, bag handle design, easy to lift, more labor-saving Double bearing mute wheel - high-grade stair mute wheel, PVC+PP+ bearing construction, 6-wheel climbing, quiet and durable Stable - can bear weight -50kg, strengthen the steel 0.6cm thick material, the interface is equipped with silent silicone, the parking is stable, does not hurt the floor Insulation-insulation aluminum film, thick sponge handle, no hand injury, safe and durable, zipper bag opening, double zipper head is more convenient and more These waterproof, portable Oxford cloth shopping bags can be used on their own or in conjunction with a shopping trolley.