This eco-friendly scale is powered by its own solar panels and features a natural bamboo weighing surface. The Instant-on and Automatic Shut-off features make the ECO180 very easy to use. Simply step on, wait for the display to blink, and step off. With the user friendly Display Hold Feature, weight measurements will stay on display even after you step off the scale. Measures up to 400 Lbs (180 kg) in 0.2 lb (0.1 kg) increments.Solar powered by artificial or natural light, natural bamboo platform, instant-on technology with a user friendly display hold feature. Bamboo. Comes with a Lifetime LTD Warranty.