Razor sharp! This is a professional-grade glass cutter used by a genuine glassworks. While there may be some scratches and rust, the diamond tip allows even beginners to easily cut glass. It's useful for disposing of glass waste, etc. Get one for your home! As shown in photo 3, there are 4 in stock, but please note that one will be selected and sent at random. This is a listing for one cutter, not all four.