1.Material: aluminum alloy frame, sanding bright silver surface treatment, tube diameter: main frame 25.4MM tube thickness: 1.35MM. 2. Increase the arc blow molding backrest, the surface has a non-slip pattern, comfortable, non-slip waterproof, equipped with a lid toilet, splash-proof, non-leakage urine, out of bed can be toilet, closed odor, corrosion-resistant and easy to clean; 3. Environmental protection non-toxic non-stimulation EVA cushion, the product through the in vitro cytotoxicity test, the use of non-toxic non-stimulation in contact with the skin; 4. four wheels using 4 inch universal wheel, casters for imported full plastic wheel, play easy to push, mute, waterproof and other functions; 5. Load capacity: 125kg