[Perfect design]: This cart is adjustable (Length:15.74-21.25inches,Width:7.48-13.38inches) allowing it to accommodate most of computers CPU.The gap on the surface of the pc bracket provides better ventilation and cooling for the host and protects the normal use of the computer. In addition, we also present a Velcro strap to help you solve the storage of the computer data cable.[Free movement]: The PC bracket is equipped with 4 casters and brake lock angle wheels, which can easily adjust the fixed stability through the lock angle wheels.[Surface non-slip]: The computer tower has a special non-slip texture, and 4 pieces of non-slip pads are provided to adjust to prevent the PC case from falling and scratching, so you can use it with confidence.[Easy to assemble]: The mobile CPU bracket is made of high-quality steel and ABS materials, which can withstand most computer hosts (60 pounds), without tools, easy to assemble, and assemble your new PC tower in the shortest time![After-sales service]: If you are not satisfied with the PC bracket, just return it within 90 days to get a full refund. If you have any questions or suggestions about this product, please feel free to email us and we will reply within 24 hours. Product Description Special Note: When installing stainless steel square tube to ensure that the concealed buckle is open state, you can insert the casters smoothly.