Sturdy stainless steel patch fitting (AISI SS304 grade) with SS covers in satin finish for frameless sliding-folding glass wall partitions. Heavy-duty roller trolley smoothly moves inside top track profile with double hinge holding adjacent glass panels to create uniform sliding-folding action. Special gaskets to ensure better glass grip. Vertical adjustment possible. Cylindrical glass holes reduce glass fabrication cost. All fasteners in stainless steel with all accessories in nylon black. Easy to install. Suitable for 8-12mm tempered glass. Maximum glass panel width 900mmW. Used in conjunction with FG04.Ideal for folding glass doors and partitions, concertina doors and bifold doors.