Unlike traditional medical beam scales or common bathroom scales that can be a struggle to read, this model displays weight in clearly viewable 1 1/8" high numbers on a column-mounted LCD panel. The scale automatically activates when you step on its generous 17" W x 22" deep platform, and it holds readings for 15 seconds. An integrated mechanical height rod spans from 2'7" to 6'10"; when height is entered, the scale automatically calculates Body Mass Index (BMI). The scale is powered by four AA batteries and rolls easily on two integrated 2" wheels, allowing it to be positioned anywhere in a home. 500 lb. capacity, accurate to 0.1 lb. or 0.05 Kg. Durable ABS and metal construction. Assembly required. 53" H x 15" W x 17" D. (27 lbs.)