This is an Ultra Small digital scale.  Designed with the user in mind.  Sleek design and easy to calibrate it measures in grams, ounces, Troy ounces, and Pennyweight.  Accurately measure in 0.001 ounce or 0.01 gram;  Easy to calibrate to ensure accurate weighing;  Included are two Lithium batteries, calibration weight and protective slipcover.