The Twinner II doubles your fun! Ideal for keeping mobile when the second baby (or twins) comes along. It carries up to 100 pounds of combined weight and measures 33.5 " from wheel to wheel. It's perfectly balanced, whether you're giving a ride to either one or two children and clears most any doorway. We find it's used more often with siblings than twins - it allows you to keep your toddler under control while taking the new baby for a walk. Great for walking or running and goes anywhere your adventures take you. The Twinner II features a bicycle caliper brake and is available in 16 or 20-inch wheels that quick-release for easy folding. The frame is sturdy and light, made of anodized aluminum. The Twinner also comes with a canopy and basket. Made in the USA and features a lifetime frame warranty, and one year warranty on seat, tubes, tires, and wheels. Keep fitness in the family!