Check plumb or level accurately and conveniently even in tight spaces with Johnson Level's 1721P Pocket Level. Its compact yet heavy-duty design makes it the perfect choice when you're working in tight jobsite areas. It fits conveniently in your pocket, utility drawer or tool box and can be worn on your belt using the included belt holster, ensuring it's on hand when you need it. The level's solid curved block SurroundView vial reflects ambient light in dim environments and is oversized for maximum readability. This level is also equipped with rare earth magnets that hold to flat or round ferrous metal surfaces for convenient, hands-free use.