[Anti Tippers Bracket]: Prevent the patient from leaning backward when using the wheelchair to climb the slope independently, prevent the patient from leaning back with force, increasing pressure and falling down [Height Adjustment]: You can adjust the height of the wheelchair flexibly, which providing you with a choice of 5 gears of adjustment, convenient and fast [Strong Load Capacity]: Each wheel can bear a load of 330lb. Deepen the anti-slip pattern on the foot points, making it easy to climb various steps [Excellent Quality]: The wheels are made of thickened plastic material with polished surface and good wear resistance. Aluminum alloy main rod using high quality engineering, tube wall thickness up to 3 MM, strong bearing capacity [Easy to Install]: They are easy to install and provide stability and ensure your wheelchair remains upright