These levels are conveniently sized for storage in a shirt or apron pocket..
The 2" × 3" cross-test level and plumb is cast iron with a satin nickel finish. It has accurately machined working surfaces, with two vials on one face at a right angle for leveling in two axes and a third vial on a perpendicular face to check for level and plumb.
All are made in USA.
The Starrett Collection of Down-Scale levels