HOPPE 16mm HLS9000 manual middle extension with two Swing Hooks.

The middle extension is attached to the lower assembly just above the spring latch. A shoot-bolt extension is attached to the top of the middle extension to complete the multipoint lock.

Application: Middle Extension used with upper shoot-bolt 
Locking Type: 2 swing hooks 
1st Top Hook: 19.69 inches ( 500mm)
2nd Top Hook: 35.43 inches (900mm) square end 
Hook Projection: 3/4 inch (19.5mm)
Face Plate Width: 5/8 inch (16mm)
Extension Length: 39.84 inches (1012mm)
Maximum Cutoff: None
Number of Screws:  6 Stainless Steel  

NOTE: There are 5 middle extensions used with various top extensions to accommodate door panel heights from a minimum 73.50  inches (1867mm) to a maximum 137.48 inches (3492mm)