VQU1011 Features: * Pressure mounts for easy set-up and take down around the house and on the road * Lever-style handle offers an easy one-touch release * Convenient walk-through design * Perfect for doorways and staircases * Can be used for pets * Easy to install and take down * Intended for ages 6 to 24 months Includes: * Includes 4" and 6" extension kits Construction: * Sturdy and durable all-steel construction