1. One-word anti-balance wheel + anti-typhoon wheel function design, more stable, more wind pressure resistance;
2. Frame hidden fan structure, more simple and beautiful, security and stability double guarantee;
3. New high-permeability yarn and steel yarn costructure yarn fan, safety, lighting can meet;
4. Tubular high flange design, waterproof, sealing effect is better;
5. Cut-off drainage design, through the cut-off layer to prevent rainwater backpouring;
6. Hidden hook children's code lock, safer and more beautiful.