【DUAL COMPARTMENT DESIGN】: HOVONO cat backpack carrier features 2 separate zipper-attached compartments to shelter 2 small pets. You can also remove the divider and turn 2 compartments into 1 compartment to shelter 1 small to medium-sized pet, suitable for people who have multiple small pets 【CAT CARRIER ON WHEELS】: Designed as a trolley case with 4 spinner wheels, it moves very silent and smoothly with 360° rotate while the Push-button locking handle adjusts to multiple heights for comfort when rolling the case, offer you effortless mobility in any direction, allows for easy maneuvering through street, malls, supermarkets, etc 【EXCELLENT VENTILATION&VISIBILITY】: This pet backpack carrier comes with 5 breathable mesh windows and 6 ventilation holes on 4-side of the cat carrier backpack, to provide plenty of air and great view for your pet. With zippers on both top and front, your lovely pets can be put in and out of the pet carrier easily 【PRACTICAL SIDE POCKETS】: The pockets on both sides of the cat carrier allow you to store essential pet supplies(such as bowls, water bottles and toys), so you can let your pet be well taken care of while out. There is also a holder for trash bag or poop bag on the side, which is a great convenience that most other pet carriers don't have 【MEASURE YOUR PET BEFORE PURCHASING】: Ideal for 2 small pets(up to 16 Lbs for each compartment) or 1 small to medium-sized pet(up to 32 Lbs). Weight may be misleading to determine whether or not a pet would fit. Please also refer to the size chart in the main images or in the descriptions, then measure your pet's height and length to determine if it is suitable for your pets At HOVONO, we focus on the differentiated needs of you and your pets, and are committed to bringing you a high-quality experience and a convenient lifestyle. The HOVONO double-compartment pet carrier backpack features 2 sturdy cabins, 5 ventilated mesh windows and 4 multi-directional spinner wheels , is born for pet owners with multiple small pets.