Double-layer design can hold two small pets,or fit one small to medium sized pet by removing the divider,realizing double-layer and single-layer free switching in a few seconds. 16.5"x12.6"x21.6" (LxWxH). Upper size: 16.5"x12.6"x10.8". Lower size:16.5"x12.6"x10.8". Provide enough space for your pet to keep it comfortable during the journey. Convenient disassembly and assembly of the four wheels, Wheels smooth-rolling mobility in any direction. The telescoping handle extends easily and smoothly and the length is adjustable to accommodate varying heights. The high-quality polyurethane double wheels provide extra stability and durability. There are 7 breathable mesh windows to provide good ventilation and visibility,and ensure the pet not sultry heat. (A14-237)