No Drilling No Tools Installation: Enjoy a quick setup in just 25 seconds without tools or drilling. The design allows for easy removal and repositioning without causing any damage to your walls. Safe Free-Stop System: The cordless design is safer for children and pets. They feature a robust spring-loaded mechanism that has passed 5,000 times of lifting and pulling tests for each blind. You can smoothly stop the shade at any position. Privacy Protection: Made of 100% polyester material with reinforced thermal insulation coating, these fabrics feel soft and smooth.