This model has a pull-rod design and is suitable for carrying heavier small and medium-sized dogs and cats or two or more dogs and cats. It's breathable and hidden by a dense mesh. The upper panel and both sides are designed with, which is well ventilated and allows dogs to watch the whole process. Inverted, it can be used as a sleeping home for traveling pets. The carrying capacity of the pull box is that there are 2 independent universal wheels on each side, which has a better carrying capacity. There is an anti-escape device inside the bag. There are pockets on the bottom and back of the backpack to store items. Even if you don't own a dog or cat, or don't travel with a cat, this trolley design can also be used as a suitcase, with full functions and suitable for the different needs of most small and medium-sized dogs. Yes, it is suitable for future storage and does not take up space. Please allow 1-3cm differences due to manual measurement. Due to screen differences, the colors may be slightly different from what you expect, please allow. pet supplies dog crate house fence