The Levels ClipArt gallery contains {examples} of tools used to determine horizontal or vertical orientation.
An instrument by which to find a horizontal line, or adjust something with reference to such a line.
Indicator that establishes the horizontal when a bubble is centered in a tube of liquid
Machinists' level. A spirit level, bubble level or simply a level is an instrument designed to indicate…
The graduated plumb and level is a type of plumb bob with a scale. It is used to level horizontal or…
A narrow board with parallel edges having a stright line drawn through the middle, and a string carrying…