The Brink s Keyed Entry Ball Style Doorknob with a sleek Satin Nickel Finish is the perfect solution for secure exterior door locking. Easily operate the lock from the inside with a thumb turn and unlock with a key from the outside. Made with a sturdy tubular chassis this doorknob is suitable for both commercial and residential use. The adjustable latch fits standard doors measuring 1-3/8 to 1-3/4 thick and is compatible with 2-3/8 or 2-3/4 backsets. This reversible doorknob can be installed on either right or left-handed doors for added convenience. As a global leader in security-related products and services the Brink s name is synonymous with top-quality merchandise A Trusted Name in Security since 1859 ™.