Check the listing for details. Rolling Pet Carrier Backpack with Removable Wheels for Under 18LBS, Large Soft S. Color: Gray, Condition: New. Listed at 54.67 USD. User-friendly Details: Enjoy versatile use with multiple carrying options: hand-held, wear on your back or shoulder, or pull with the 3-level adjustable aluminum alloy pull rod. The self-locking zipper prevents your pet from escaping, while the detachable Velcro offers easy carrying and storage. Snap-on Installation: With a 3-buckle design, simply attach the cat carrier to the base's slots and secure it in place to complete the installation. Get a quick and easy assembly. Comfortable and Breathable: Designed with 3-sided breathable mesh windows, our pet carrier provides excellent ventilation and a wide view. The back and shoulder straps have thick padding for added comfort during long trips. The small side pocket can be used to store pet supplies and a p.