* Drop automatically when closing the door.
* Isolate smokes, dust, insects, noise, and save energy.
* Be used in swing or sliding door.
* Hidden type: Invisible in door, keeps outlooks the same.
* External mounted type: DIY easily!
* Drop range adjustable slightly.
* Optional: Fireproof DDS.
* Cut the length you need according to door width.
Type DDS-105 from 105cm to 75cm.
Type DDS-120 from 120cm to 90cm.
