1. Automatically rolling: Roll up or down with the window glass automatically.

2. One-side eyesight: Outside people can not see the inside, but people inside can see the outside clearly.

3. Sunshine protecting: Can restrict the sunshine accessing and filter UV, can save the air-conditioner energy about 60%.

4. Usage life: Can use about 10 years.

5. INstallation: Easy to install and unstall.

6. Clearing easy: Very easy to clean because its electrostatic prevention function.

7. Warranty: One year.