SMOOTH & QUIET DOOR OPERATION – Precision-engineered 64mm (2.5") tubular mortice latch features a sprung mechanism for reliable, smooth and quiet opening and closing with lever handles or door knobs. IDEAL FOR INTERNAL WOODEN DOORS – Designed for use with lever handles or door knobs on internal timber doors, making it ideal for new installations, replacements and home improvement projects. DURABLE NICKEL PLATE FINISH – Quality nickel-plated construction provides long-lasting performance while complementing both traditional and contemporary interior door furniture. SUPPLIED READY TO FIT – Includes matching strike plate and fixing screws for quick, straightforward installation, helping both DIY users and professional tradespeople complete the job with ease. TESTED FOR LONG-TERM PERFORMANCE – Engineered and tested to 100,000 operating cycles, delivering dependable everyday use in residential and light commercial applications where reliability matters., Weight: 0.1763698096 pounds, Manufacturer: Sterling