drive Nitro HD Bariatric 4-Wheel Rollator is the ultimate mobility solution that marries advanced reliable features with a sophisticated exterior. The durable frame is made of lightweight aluminum, so it's easy to maneuver on any indoor/outdoor terrain and strong enough to withstand extended daily use. To ensure maximum safety, the brake cable is built into the frame, enhancing the sleek appearance. The Nitro Rollator also features unrivalled folding capabilities: It easily collapses to an ultra-compact size with one hand by pulling the seat grip up and bringing the ergonomic, height-adjustable handles together so they almost touch. To further offer customized comfort, the removable back is also height-adjustable, and the luxury seat is made of easy-to-clean nylon. Enjoy the complimentary removable zippered storage bag for secure convenience of all your personal belongings whenever travelling with your new drive Nitro 4-Wheel Rollator. Large 10 inch front casters allow optimal steering and rolling comfort; cross-brace design allows for side-to-side folding and added stability; and handsome and removable zippered storage bag with unique attachment to keep bag securely in place when Nitro is open or folded.