【Dimension】Large Expand Size: 11.8*8.2*12.6 inch. with big enough for bearded dragon ,guinea pig, rabbit, squirrel, hamster, parrot, small dog, cat and other animals. 【Breathable Mesh Design】There are 1 side opening mesh door and a ventilation hole on the other hand to ensure air to circulate for your furry child. 【Transparent Bubble Window Design】There are a astronaut clear bubble window on the pet bag so you can observe the pet situation at any time. Your furry child can enjoy the scenery, too. 【Material】High-quality PC material, EVA reinforcement, ensure the three-dimensional of the hamster backpack .The pet will not have a sense of pressure in the traval bag. 【Convenient to carry and store】The hamster bag is light, easy to store. The guinea pig backpack is suitable for daily travel, especially when your pet is sick. You can take it out to drive, camp, or take it to pet shops, pet hospitals Sturdy breathable and portable Makes the hand part more comfortable and breathable. ABS