Weslock 411L Privacy Satin Chrome Lexington Leverset Lexington Privacy Door Leverset from the Traditionale CollectionPush button knob inside locks outsideWarranty: Limited Lifetime Mechanical Panic Proof Keylocks one turn of interior knob lever unlocks and opens door Door Prep: 2 1 8" diameter door face hole 7 8" diameter latch hole Automatic adjustment to door thickness of 1 3 8" to 1 3 4"