Fully padded external rubber case All internal components are reinforced and shock mounted Toughest digital pocket scale available - Protects from accidents and bumps Removable hard protective cover doubles as weighing tray Has edges so items do not fall off while weighing Runs on 1 rechargeable li-ion battery - 40 hours of continuous use 6 weighing modes - Grams, ounces, grains, carats, troy ounces and pennyweights Tare and calibration features Auto off after 60 seconds Easily see results on backlit LCD display