The new Pride 600 power wheelchair featuring Mid-Wheel 6 technology utilizes Pride\'s original, patented mid-wheel drive with enhanced stability. Mid-Wheel 6 technology incorporates ATX Suspension for extra stability with independent active front OMNI-Casters (nylon spherical shaped casters) that raise and lower as needed to compensate instantly for changes in terrain. They prevent hang-ups and allow for stable transitions from one surface to the next regardless of the angle of approach. Mid-Wheel 6 Provides superb all-around performance with the added benefit of 6-wheel stability in this jazzy chair. Whether transitioning curbs, climbing rough terrain or reverse handling, Mid-Wheel 6 consistently excels.