I purchase this product from Amazon and have already used it to size my Timex Ironman with metal band. The tool worked well. It is an Indian (as in made in India) made knock-off of a expensive tool. The quality is good for the price point and has two sets of six tips (in case you break one) with the additional screw driver tip (see picture in description). No directions, but then again with a little time and internet access the concept is real easy to learn. Just be aware that the pins come out one way on most bands (and conversely go in one way). Most newer bands should have directional arrows to show direction of pin removal. I marked mine with black marker before removing, but it really is not necessary if you paid attention. Tool already save me a trip to the mall and $10.00. It will easily pay for itself in time saved and money paid to jeweler the second time I use it.