The 2-in-1 Airline Pet Carrier also converts into a wheeled Cat or Dog Carrier making it ideal for travel and especially in crowded areas such as airports or busy streets This Pet Stroller and Carrier easily Disassembles and Collapses to 1.5 Inches thin. Simply Zip the Two Sides of Cat or Dog Carrier and place the Inner Softshell, Wheels and Hangle inside then zip the Two Sides closed like a clam-shell Features a High-Grade Extendable Handlebar for Ideal Height with Rubberized wheels for smooth control. Includes a Built-in Leash Securer designed to connect to any Collar, Leash or Harness inside for Safety. This Cat and Dog Carrier also Includes a Durable, Reversible and Washable inner-board designed to provide added weight support. Additionally, this Dog Carrier includes Over-the-Shoulder Carrying Straps Features a Military-Grade Hardshell that is Lightweight and Durable with a Lightweight Middle Softshell with Above-Top and Sided Ventilated Mesh Entrances Airline Approved in accordnance to most FAA Regulations, it's always important to check the most updated regulations with your airline prior to travel. Available in Multiple Colors