The 1503, just like the 1501, has a power lift, safety gate and wheel kit. The difference is the addition of a joystick controlled power drive system. With the ability to be mobile while standing, the user will have a greater independence and the desire to stand more often. Many 1503 users have found that as their mobility and independence increases, the workload on their caregivers and loved ones has decreased. This frame will also accommodate up to 400 pounds and all support pads are available.