Extra-large, backlit LCD screen. Scale calibrates itself automatically-just step on to weigh yourself, and the scale will turn off after you finish. Non-slip, scratch-resistant feet keep the scale in place without damaging your floors. 4 weighing sensors work together to ensure a resolution of +/- 0.2 lb/0.1 kg. Large, tempered glass weighing platform supports up to 400 lbs, with a minimum weight of 11 lbs. 2 long-lasting CR2032 batteries included. Please ONLY weigh-in with your bare feet as particulates on your shoes could damage the glass.