Specifications: Material: ABS + Electroplate Craft Weighing Capacity: 50KG Product Size(L * W * H): 150*30*24mm Power By: 1 * CR2032 Battery (Not Included) Items Included 1 x luggage scale 1 x User Manual Features: LCD screen, Max.50kg capacity. 10s data hold function for easy data reading. Convert of 4 weighting units: kg,g,lb,oz when power on. Convenient tare function. Pocket size, portable for luggage weighing, shopping, fishing and other home use. Peeling: In weighing mode, a short press is peeling to zero. Unit switching: In shutdown mode, when the power-on is briefly pressed and the full screen is displayed, press it again immediately to enter the unit switching mode, and then press the button until the desired unit is reached, then stop for a few seconds and automatically return to zero, and enter the weighing mode to weigh. How to set up and Select your preferred unit of weight: g/Ib/kg/Oz ? 1.Hang the luggage scale in an upright postition and press the power button. 2.Momentarily press the power button within 5 seconds after powering the digital scale to select your preferred unit of weight: g=Grams/Ib=Pounds/kg=Kilograms/Oz=Ounces 3.The screen will read 0.00 which indicates the scale is now ready to be used.