Designed for The Pet Owner On The Go: （Not suitable for air travel）The rolling cat carrier with wheels allows you to easily handle long journeys, shopping, or walks, bidding farewell to shoulder fatigue and arm soreness! A detachable aluminum chassis, 4-level extendable dual-bar handle, and 2 front wheels are 360° silent omnidirectional wheels, 2 rear wheels are fixed orientation to increase stability (all 4 wheels are removable). This is a smooth ride. Large Size & High Capacity: Our large pet carrier is suitable for a big cat, a medium-sized cat, two small cats, one or two small dogs. The soft cat carrier (without wheels) measures 21"x13"x13", is recommended for pets up to 30 pounds. The cat carrier for 2 cats also features 4 storage pockets, ideal for storing the wheels, pet supplies, food, water, and other essentials, making travel more convenient. Durable & Safe Design: Crafted from high-quality 600D PU material, this cat carrier bag offers reinforced seams, waterproofing and exceptional durability for long-term use. A removable, double-sided cushion, one side featuring soft short plush and the other side wear-resistant material, is suitable for year-round comfort. The cat travel carrier includes an integrated safety strap for securing your pet's collar, and the lockable zippers prevent pets from opening them. Ventilation & Concealment: Paw Ballet dog carrier with wheels features 4 entry doors, with a mesh window on the top and both sides, equipped with waterproof rain covers. Rolled up, they provide excellent ventilation and visibility, perfect for pets to gaze out and for you to check on them. When closed, it adds an element of concealment, creating a dark, protected space for your pet to feel secure. Easy Assembly & Use: These dog carriers for small dogs can be securely fastened to the chassis using 4 Velcro straps to prevent it from sliding on the wheeled base. The 4 wheels employ a snap-on design for quick installation and removal in seconds. The cat crate can be hand-carried, shoulder-slung, placed in a car, or pulled along after assembly, making it perfect for car travel, walks, shopping, and various other scenarios. Paw Ballet rolling pet carrier has been designed specifically for pet owners and their best friend. Lightweight and convenient, travel, camping, vet visits all become easier. The pet-optimized design, includes superior ventilation on all four sides, and features a retractable rain cover. This provides unrivaled visual access and is perfect for interaction. You can use the carrier alone, even as a resting or sleeping spot for your pet. The carrier is moderately sized at 21x13x13 inches. Made from premium high-density oxford fabric, its base and pull rod frame are constructed from high-quality aluminum alloy, ensuring both sturdiness and less weight. Setup is effortless—just secure the base using the Velcro straps underneath. When not in use, separate the carrier from the base and fold, taking up minimal space. The Paw Ballet Rolling Pet Carrier is the perfect choice for you and your adorable pet on the go.