Luggage scale powered by 2 pcs AAA battery(not included) .Auto shutoff auto-lock display saves battery lift with tare lower battery overload indication.Please contact us if you have any problem. Comfortably and Built to lastDue to sleek and ergonomic design it fits comfortably in your hand.Luggage Scale using ABS plastic material make its durable,The sturdy strap and clasp are capable of stretching around pretty much any luggage handle,Precisely weighs suitcases, bags and backpacks. Easy to useSimply turn the device on, loop the strap around the bag handle, pick up the bag by the scale handle .Read the weight and put the bag down. The digital weight scale will automatically lock the reading when data is stable. Easy to carry and save moneyThe portable weighing scales best for travel or home use,compact lightweight design easy to store at home or take along in your suitcase.Our handheld luggage scale resolve all of your trouble,Don't worry about extra baggage fees. It's a great addition to your travel accessories. AccurateHigh Precision Strain Gauge sensors system,capacity up to 100lb / 50kg,precision accuracy of 0.1lb/0.05kg;Travel luggage scale with accurate digital and easy to read LCD display,Convert units between Ib/oz/kg/g.