Security & Durability: These matte black door knobs are made with stainles steel, feature solid brass cylinders, heavy duty steel latches, and nickel plated bolts that are durable against wear. These bedroom door knob are suitable for both right and left handers and can cover previous door lock holes Adiustable Design: The length of the door latch can be adjusted from 60mm to 70mm(2-3/8 to 2-3/4 inch). The interior bathroom door knobs fits most standard-sized doors ranging from 1-3/8 inch or 1-3/4 inch in thickness. Please check the size according to the detailed picture before purchasing black door knobs interior Easy Installation: The black indoor door knobs includes all necessary accessories and clear installation instructions. The privacy interior door knobs operates without keys, locking securely from the inside via a turn button and unlocking from the outside with a coin or flat metal piece in case of emergency Multi Usage: The black privacy door knob are used on bedroom, bathroom and other rooms where privacy is needed. From luxury to restrained, from classic to modern, our black interior door knob are widely applicable to various decoration styles Customer Service Excellence: Before installing our matte black interior door knobs, take a moment to inspect each part. If you experience any quality issues with your interior privacy door knobs, contact us promptly
