The Wood Magnet instantly transforms any2-by cut of lumber into a custom level. The unit has a compression-design that fits easily on round or square posts and a cut-out saddle that makes it ideal for horizontal use. Made from high-impact composite, the unit measures 8 ¾ inches long and has a cushioned rubber grip. Cost: $12. Swanson Tools. 815-469-9453. www.swansontoolco.com.