I purchased this set of tweezers for the assortment that enables one to use each pair for a different need. The pointed ones are for ingrown hairs, the slanted ones for eyebrow grooming and the third pair for splinters and such. However, the opening is very close on each pair, and they do not spring back as I would expect them to. That being said, they are made of stainless steel and should not corrode, rust or tarnish. They are supposed to be calibrated and aligned for high performance and precision (which is where I found them lacking) for hassle free tweezing, plucking, and maneuvering. They are inferior to the more expensive brands, but they can get the job done if you can deal with the weakness of the tweezing and releasing action. They do offer a full money back guarantee if one is not satisfied with this set.