I have never written a review before but think it necessary to warn people about this product. I left my bike outside Stephens Green shopping center yesterday (Saturday) and went for a walk around Dublin city. For those of you who are not familiar with Dublin, Stephens Green is a very busy area, especially on a Saturday. When I came back I found a thief on my bike about to take off. Once I confronted him he quickly gave me my bike back. Some passers by noticed the confrontation and approached me after the thief had left. One in particular said she had seen him "unlocking" the bike but that he didn't look suspicious.The position and break of the wire suggests he did not cut the lock but managed to apply enough force to snap it. He did this in a very busy area with what must have been minimal effort otherwise his behavior would have been noticed. I would suggest to anybody looking to buy a lock to seriously consider buying a U lock rather than this style of lock.