A bubble level or simply a level is an instrument designed to indicate whether a surface is horizontal (level) or vertical (plumb). This application is easy to use and to accurate level. Early tubular spirit levels had very slightly curved glass vials with constant inner diameter at each viewing point. Now we are providing this tool, digitally in your mobile. Where you can use Bubble Level? A bubble level is usually used in construction, carpentry and photography to determine if objects on wh