The Johnson Level 24-Inch Aluminum Box level is designed to be long-lasting and durable enough to take on even the toughest of jobs. It features SurroundView vials that reflect ambient light. This makes it easier to read in low light. The vials are also solid block acrylic and won't fog, leak, or break. You can worry less about damaging your level with the shock-absorbing endcaps. These endcaps protect the level when dropped, ensuring lifetime accuracy. You can use this level in any number of applications such as framing, finish carpentry, and concrete work. It's non-magnetic and can be used with both wood and concrete. The screwed-on hand-grip stays on the tool, making it easier and more comfortable to work with.