Passage Function: Emtek's passage knobs and levers have no locking mechanism and is free turning on both the inside and outside. Many times passage knobs and levers are used on either a hallway or closet door where no security is necessary, but sometimes are used paired with a deadbolt for an entrance or back door.Emtek's Stuttgart lever is one of their most popular styles. With its contemporary look and simple design, it is a popular choice for those looking to add to their modern décor. Having a Stainless Steel construction and Brushed finish, the Stuttgart lever is sure to provide functionality and beauty for a lifetime. Concealed Screws on both Interior and Exterior for a Clean and Elegant Look. 28° Premium Latch Shortens Rotation for a Superior and Simpler Operation. Reversible Handing for Easy Installation. Door Thickness: 1-1/4" - 2-1/4".