Glass back sprayed black with stainless steel contacts. Electronic LCD 2' dot matrix display. Auto shut off. Athlete mode with three fitness levels. Body fat. BMR. Body water. Weight 200kg/31st 5lb. Muscle mass. BMI. Body water. Memory. Visceral fat. Low battery warning. Size (H)4.5, (W)30, (D)30cm. Requires 6 AA alkaline batteries (included). Manufacturer's 15 year guarantee.