US Balance ACE 100 x 0.01g Grams Digital Grain Scale Grain Coin Scales in Silver plastic,metal Imported Four Measuring Units: Grams - Ounces - Carats - Grains Capacities:100 X 0.01 Grams, 3.52 X 0.001 Ounces, 500 X 0.05 Carats, 1538.6 X 0.2 Grains AAA batteries. First set Included. Dimentions: Scale 5.8 x 3.8 x 1 inches / Weighing Surface 2.75 x 3 inches 100 gram Capacity by 0.01 gram Resolution