Sturdy Construction & Good Mobility: The bottom tray is made of high-quality aluminum, and the bottom tray of the cat carrier is tightly combined with the cat carrier with 4 Velcro to ensure that the cat The bag does not shake or fall off. The bottom has a wooden support board to keep it in good shape, pets can also stand, and the top will not collapse. The four casters adopt ABS universal wheels, which have good maneuverability, making the cat carrier smoother to pull. Private Breathability & Scratch and Bite Resistance: The pet carrier is breathable on four sides, and the roller blind can also be put down if the pet feels nervous. Pets are accessible from both sides and the top. At the same time, our cat carrier has thick fabric, which is scratch-resistant and bite-resistant, making it durable. Four Ways of Use & Two-Step Assembly: Our pet carrier can not only be hand-carried, but also shoulder-carried, or put in the car, and also can be pulled on various grounds after being assembled with wheels, easily and effortlessly. The assembly of the pet carrier is also very easy, only 2 steps are required, you can refer to our pictures or instructions. Foldable Design: This cat dog carrier is compact in structure and can be folded after unzipping, which is easy to store and does not take up space.