The scale provides a detailed analysis of weight, body fat and muscle mass (BMI) for up to 10 users. With only the information of your age, gender and height it works out your weight, body fat and muscle mass as well as your water ratio and bone mass. This will help you to monitor your health easily. As it can be used by up to 10 different users it can monitor the whole family. If measures in both lbs and kgs up to 330lbs or 150kgs. All you need to do is pop 2 x AAA Batteries in, step into the scale, input your details and you can see everything there. Approx. Product Dimensions: 32 x 32 x 3 cm.