Emtek, C510BA, Passage, Basel, Leverset, All Emtek items are made to order. The Emtek Basel Lever is a perfect fit for the contemporary home. With its simple yet decorative design and availability in popular finishes such as Satin Nickel and Polished Chrome, the Basel Lever is sure to add beauty and elegance to any room. Its solid brass construction gives it a very durable and sturdy feel and is sure to last a lifetime. Available with a multitude of Rosette options, the Basel Lever allows for a customized look to match anyone's personal taste and any room's motif. See the rest of Emtek's Brass Modern collection and Basel series for more options and a complete house solution! 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. Features: Standard Door Prep Solid Brass Construction CF Mechanism: 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 Available in Square Corner Latch Plate Only Lifetime Limited Mechanical Warranty Specifications: Projection: 2-3/8" Lever Length: 4-11/16" Door Thickness: 1-1/4" - 2-1/4" Backset: 2-3/8" or 2-3/4" Emtek is dedicated to bringing interesting, well made hardware back into American homes. Emtek's mission is to satisfy the higher expectations of today's homeowners with regard to door locks. They strive to provide a broad and interesting range of products that consumers can use as elements of decor, and not just as a way to latch a door.