1. [Classic Wave Style Design] The comfortable and elegant design provides a comfortable grip and operation. Brushed /Stain Brass finish not as shiny but more of a warm, subdued gold smooth matte is suitable for both traditional and modern decorative styles. Keyed Entry Function ideal for Office or Front Door adding a touch of sophistication to your door. 2. [Reversible Lever] Wave style brushed brass gold reversible lever flexible for both left-hand and right-hand doors. The interior lever can be removed from the rosette assembly and switched with the exterior lever, preventing the levers being upside down after installation, ensuring a seamless appearance. 3. [Versatile Standard Size]Fit all door thicknesses from 35mm to 45mm (1-3/8" to 1-3/4"). Adjustable latch slides easily into place without tools, allowing it to fit standard doors with 2-3/8" or 2-3/4" backset. Its round rose cover has a diameter of 2-3/5" (65mm), ensuring a perfect fit with your door. 4. [] With no need for specialized tools or expertise, anyone can install this handle in just a few minutes only a screwdriver. This ensures a secure and reliable lock in place without any hassle or inconvenience.