After a few months, these hinges begin to squeak and squeal (which just gets worse and worse) and black stuff (graphite lubricant?) comes out all over your door frame, casing, and door stop strip. Got tired of repeatedly cleaning it off my wood work. They might be cheaper in the short run, but don't waste your money on these low-quality hinges and then later have to also pay for high-quality (albeit more expensive) replacements. Save money by getting the better ones at the outset.