Specifications:Color: SilverCapacity/accuracy: 500g / 0.1gUnits: g/ct/dwt/gn Auto Off: 30 seconds Backlit: Blue Power supply: 2 * 1.5V AAA batteries (not included)Platform size: 6.5 * 6.1cm (2.6 * 2.4in)Item size: 10 * 6.9 * 2cm (3.9 * 2.7 * 0.8in)Item weight: 72g/2.5ozPackage size: 10 * 8.5 * 2.5cm (3.9 * 3.3 * 1.0in)Package weight: 89g/3.1oz