The Allure Series one-piece aluminum construction provides remarkable strength and reliability. It is compatible with industry standard single or multi-point mortise locks. It is available with optional key lock cylinders which can be located in the center, or offset positions within the handle. All AmesburyTruth Allure Series Handle sets have been engineered to fit stile thicknesses ranging from 1.25" to 2.25". Extended bosses on both the inside and outside escutcheons enhance handle stability for more secure operation.