Plastic and glass. Capacity 150kg/ 23st 6lb/ 330lb. Compact. LCD. 12 memory programmes. Requires 2 x CR2032 lithium batteries (included). Low battery warning. Auto shut off. Tap start. Athlete mode. BIA body fat. Body water. Muscle mass. Memory. Size (H)3.4, (W)29.5, (D)28.7cm.