Gainsborough Trilock Knob SetDomestic grade knobset with multiple security functions. Features Satin Chrome finish 3 in 1 security, deadbolt, privacy and passage functions Knob design Double cylinder deadbolt Privacy button on the inside allows emergency exit from inside Passage function when unlocked or unsnibbed Single handed operation from outside 5 pin euro style cylinder Silca TE2 keyway Supplied boxed with 2 keys