Main material: CNC aluminum alloy. Backplane material: Gold plated circuit board. Size: 210 x 72 x 71mm.Package Included: 1pc of RGB Digital Clock. Note: Please allow minor errors due to manual measurement. Item color displayed in photos may be showing slightly different since monitors are not calibrated same. We are committed to resolve all issues in a friendly and satisfactory manner. Only unused, undamaged and original condition item can be qualified for a return.