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. Dual compartment Adjustable structure Top & front entry 5 mesh windows 6 ventilation holes 4 spinner wheels Retractable push-button handle Multifunctional side pockets Excellent Air Circulation The 4 sides of the carrier come with 5 mesh windows and 6 ventilation holes, to give your pet plenty of air and great view. It is also convenient for you to interact with your pets. Accommodate 2 Small Pets With stable double-layer structure, it can accommodate two small pets and keep them apart. You don’t have to worry about your carrier collapsing or pets disturbing each other. Hold 1 Medium-sized Pet You can remove the divider to open a larger space, to hold 1 medium sized pet easily. Actually, you can hardly find a pet carrier larger than this one on the market. 360º Spinner Wheels With the 4 silent spinner wheels, you can move the pet carrier in any direction, and over any rough surface, relieving any pressure from your arms while on the move. Telescoping Handle The sturdy ergonomic telescoping handle that made of durable aluminum alloy extends up to 41 inches, for simple, one-handed use. Multifunctional Side Pockets The pockets on both sides of the carrier allow you to store essential pet supplies, such as food, bowls, water bottles, poop bag and toys, which is very convenient for you. Attention: Measure your pet before purschasing. 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.Recommendations on measurement. If holding 1 pet, measure your pet’s length(front feet to base of tail) and height(floor to top of head) in a sitting position. If holding 2 pets, measure your pet’s length(head to base of tail) and height(floor to top of head) in a standing position.You can also measure the size of pets in your own way and choose the size of the pet carrier based on experience. We just want to give you a suggestion, please carefully compare the size of your pet and the size of the carrier, and reserve enough space for pets according to your needs.It may not meet the requirements of some airline due to the large size. Each airline sets their own specific requirements, and they can even vary from their domestic, international, and shuttle services, it is very important to CHECK WITH YOUR AIRLINE before purchasing and flying.