Automatic Drop Down Design：The automatic drop down mechanism lowers the seal only when the door is fully closed and retracts when the door opens. This design helps reduce friction with the floor while creating a tight seal along the door gap. Helps Reduce Drafts, Dust & Noise：Creates a barrier at the bottom of the door to help reduce air leakage, dust, everyday noise, insects and small Small Animal entry. Ideal for improving indoor comfort in homes, offices and apartments. Self-Adhesive Installation：Features a strong self-adhesive backing for quick installation without drilling. Simply clean the door surface, peel the protective film and press firmly into place for an easy DIY installation. Aluminum Construction: Features a sturdy aluminum housing and flexible seals to ensure reliable performance in daily use. The automatically retractable seals and kick plate design protect the door from scratches and damage. Customizable To Fit Your Door: Available in Black, White and Brown to complement different door styles. Offered in Left-Hand and Right-Hand versions with customizable lengths to fit a wide range of residential and commercial doors., Manufacturer: QHZYMX