The Empire True Blue Extendable Box Level offers the most versatile performance with the ability to extend for exact fit in any job. This level allows for a perfect fit in custom or odd size applications and constant surface contact for an accurate read across the full length of material. The adjustable sizing allows users to carry less, but do more with the ability to replace up to three level sizes and maintain productivity with this all-in-one solution. Empire's patented e-Band Vial Technology provides superior readability and reliable 0.0005/in accuracy. The mark & scribe edge allows for continuous scribing across the full length of the level, even when extended. The adjustable extension mechanism allows for customizable friction fit resistance and long term performance. The Empire True Blue Extendable Box Level offers leading versatility and accuracy for all tradesman and the applications they face on a day-to-day basis.