Materials: All case and writing surface materials are made from impact-resistant plastic. All case components are made from an ABS plastic material commonly used in many other consumer products. The LCD has passed toxicology assessment for safety.
Power: Battery operated. (Battery ?is not replaceable but is designed to last the life of the product.)
Dimensions: 5.1 inches (W) x 7.7 inches (H) x 0.4 inches (D)
Weight: 0.25 pounds