Elegant, smooth stainless steel or powder coated MS. The flap retracts completely inside the door column to give unobstructed passage. Versatile, the electronic part as a microprocessor that makes it possible to change the setting from the consol or electronic card. Easy to use manual override mechanism in case of power failure. Convenient, automatic movement in both ways (Bidirectional) Ideal for handicapped persons. Niraj Access Automation Systems - Flap Barriers