1.Large capacity and good ventilation: This cat cage with wheels has a surprisingly large capacity, which can fully meet the needs of pet activities. Its unique porous breathable design cleverly constructs an air circulation convection system to ensure that the air in the cat cage is always fresh, allowing your pet to breathe without worry and feel comfortable. 2.Smooth, quiet and easy to store: The pet carrier is equipped with 360° allround silent pulleys, which are as smooth as silk and silent throughout the process, without disturbing your pet and the surrounding environment. What's more intimate is that the pulleys can be disassembled, which is easy and convenient for daily cleaning or storage, saving you worry and effort. 3.Strong and stable loadbearing: The rolling cat cage with wheels shows excellent loadbearing capacity, which can withstand a total of 22 pounds and steadily carry small and mediumsized pets. The sturdy structure provides a solid guarantee for the of pets when traveling. 4.Convenient and retractable: The telescopic rod attached to the portable cat cage bag has a stretchable length of up to 52cm, which can be flexibly adjusted according to your height and usage habits. Whether it is handheld or towed, it can bring you a comfortable and convenient use experience and easily cope with various travel scenarios