Electronic Digital Portable Travel Luggage Scale Travel Case Never Pay Extra Baggage Fees Black Good and accurate scale,lightweight design is worthy travel tool Auto-zero, auto-off, unit convert and so on,with blue backlight. weight unit:g, kg, lb,oz. Max capacity:20kg/5g,40kg/10g,50kg/10g Over load indicator,LED indicator on luggage scale tells you if the bag is under/over weight limit. Material:plastic,steel , Power:3v(2pcs xAAA battery not included)