The PR121ES has a working width of 21 in , which is perfect for 2-4 car driveways. Single-stage snow throwers use the durable auger to propell the unit forward while gathering in snow then throwing it out through the chute. Controls are large and easy to operate while wearing gloves. Larger 8 in x 1.75 in wheels provide better maneuverability in tough conditions. This model also features an electric start push button which helps starting in cold weather. Don't be left out in the cold this winter - be ready to go when the snow falls!