Residential Keyed Entry Door Lever. Quiet and smooth mechanism. Doors can easily open by pulling lever up or down. SmartKey Security protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds. Wave style lever is non-handed for right or left hand doors. Adjustable Latch. ANSI/BHMA (American National Standards Institute/Builders Hardware Manufacturers Association) Grade 3. Lifetime mechanical and finish warranty.