Hoppe Upper Extension, 16mm Faceplate, 55.75" Overall Length - Manual Tongue, Square Ends

Extension Length: 55-3/4
Faceplate Width: 5/8 inch (16mm)
Tongue Position: 41-3/16" (from handle to tongue) 
Maximum Cutoff: 11-3/8"
Fits Doors: 80-3/8" tall - 91-3/4" tall
Material: Stainless Steel
Number of Screw Holes: 7

Priced and Sold Each. Extension ONLY, lockbox not included.