JLT1051 Features: * Big J magnetic HD aluminum level * Powerful griptight magnetic edge with rare earth magnets hold to ferrous metal surfaces * Oversized solid aluminum frame is jobsite tough * Machined working edges assure maximum accuracy * Quik-change replaceable cover plates and vials for in the field service * Oversized top-read windows for easy viewing * Surround view vial system for enhanced readability * Vial surrounds reflect ambient light for easy read in dimly lit work environments * Oversized anti-slip/anti-shock end caps protect frame * Rubberized cushioned hand grips Dimensions: * Oversized 0.5"" diameter vials are easy-read * Dimensions: 78"" H x 2.75"" W x 1.19"" D