Spirit dancer 4-wheel scooter is designed to disabled people and olders who have difficulty in working. It has many features:regenerative brake system make you move and stop freely,imported curtis controller and CCB battery allow this disabled scooter more efficient and practical,good quality absorber in rear wheel provides riding stability and safety for the uers,a 1430mm turning radius allows for profect control this 4-wheel scooter.With adjustable armrest,you can on and off this 4-wheel scooter more easily.Be sure this 4-wheel scooter is a wise choice for you.