Gen7Pets Geometric Roller-Carrier Backpack STYLE AND CONVENIENCE: For pet parents on the go, the Roller-Carrier takes innovation and fashion to the next level. Whether running errands, traveling or enjoying the great outdoors with your cat or dog, the Gen7Pets Roller-Carrier Backpack with Smart-Level Platform provides a smart, secure and safe experience for you and your pet. SMART LEVEL DESIGN: Unlike other wheeled carriers, Gen7Pets Smart-Level Platform keeps your pet from tipping over as the carrier is pulled from behind. Available in two convenient sizes for pets up to 20 pounds, the Roller-Carrier easily maneuvers in and out of stores, without disruption to other shoppers. COMFORTABLY RELAXED PET: With top and front access doors, two mesh side windows for airflow and an interior safety tether you can relax, knowing your pet is comfortably enjoying the ride-along. Side storage pockets make it easy to pack leashes, treats and toys. CONVERTS TO BACKPACK: As added convenience, the Roller-Carrier quickly becomes a backpack, making it easy to safely travel up stairs, escalators or over rough terrain and with our Smart-Comfort pads the carrier quickly becomes your pets home away from home. PRODUCT SPECIFICATIONS: Package contains (1) Gen7Pets Roller-Carrier Backpack with Smart-Level (Black Geometric, Medium). For Medium Size: Interior Dimensions: 15.5" tall x 8.5" deep x 13.5" wide. Carrier Weight: 6.2 lbs. Overall Dimensions: 19"tall x 10.5"deep x 16.5" wide. Colors: Black Geometric, Red Geometric, Zebra, and Links. Maximum weight 10 lbs.