Having a digital pocket scale is convenient for purchasing smaller things like screws and nuts as well as jewelry. Quantity of small things can be done by weight as counting each individual piece can be time consuming. As well as making sure the jewelry you buy is the weight you paid for. This scale can measure up 500g with an accuracy of 0.1g. The units of weight are selectable and runs off the 2 CR2032 batteries provided. - Color: Black - 1.1" LCD backlit display - Max capacity: 500g - Accuracy: 0.1g - Units: g/oz/ct/dwt - Powered by 2 x CR2032 batteries (included) - Comes with English manual