SE 86 W&D is non-thermally broken two rails sliding system. Heavy duty rollers are used to ensure long service life. High quality of brushes with nylon fin allowing for superior tightness. Fly screen available integrated with the frame or add-on thus allowing to be fixed both sides of the opening. Built in architrave, non architrave, and add-on architrave with varies architrave and glazing bead designs to suit different interior design styles. Varies opening configuration are available to satisfy required functions.