... ,advertising color changing Add cold water, the picture outside will magic change ON temperature; 8°C,12°C,15°C,22°CColor changing glass, Glass ... into the mug.2. Material of glass: is best effect for color changing3. We have different temperature color changing oil, Such as 8°C ... ,12°C,15°C,22°C for Cold color change.CUSTOMIZE PROCEDURE:Step 1: Choose the glass ...