I work as maintenance for a 3 doctors surgerys where security is paramount they asked me to get a stronger lock than before. So l knew about these locks and persuaded them to go for one. I ordered the lock and it arrived promptly. I fitted this lock with ease and it feels very solid and well made. Aswell as being strong its very easy to fit and great for ease of use. I would highly recommend this lock if you need it for high traffic through door i think this lock is value for money! Strong well built what price security??