4 brakes, honeycomb breathable mesh, removable and breathable cushions. Antibacterial and anti-fog. No need to inflate, no puncture. Easy to fold. With a seat belt, it is safer to use. Non-slip hand ring. Overall length and width 105*68*85cm Built-in seat width 45*45 cm Built-in seat to backrest 43cm. Handrail to ground 67cm, large wheel 24 inches (60cm) Small wheel 7 inch (17cm) seat surface Height 44Cm. Folded outer packaging size 90*90*25cm, 1.3mm steel tube frame, 1.5cm bee net cushion. 1.5 thick backrest, large steel ring, ABS hand ring. Net weight 15kg, gross weight 17kg, solid white tires, can replace the pneumatic tire black tires.