Durable and sturdy, not easily deformed, and easy to clean. 7-blade spiral fan blade, strong wind power, enjoy fresh air. Full metal body, durable and not easy to change color, fire retardant, beautiful shape. High-speed double ball, significant wind power, low noise. Thickened mesh, prevent inhaling foreign objects, safer to use. Bidirectional design, suction for one, high hardness, good balance.