Fabricated from highly durable materials that allow for hands-free operation on a variety of surfaces, levels deliver clear indications for determining the flatness of any horizontal surface. In many models, an enclosed air bubble oscillates between opposite ends of the tool as equilibrium is sought after; once a level surface has been obtained, the bubble will come to rest between two clearly marked lines to show that the surface is indeed level.
Torpedo Level
This level features a sturdy plastic construction, magnetic base, and grooved top and bottom.