*Heavy duty aluminum frame for none warp or twist.
*Curved profile for easy picking up.
*Three fixed vials with professional accuracy 0.5mm/m(0.0005in/in)
*Adjustable magnetized fixing pin system.
*Large rubberized endcaps for strong shock resistance.
*Strong holding rare earth magnets(optional).

*Heavy duty extruded aluminium frame.
*Three sizes level are available from 865mm to 1200mm, from 1315mm to 2000mm, from 2000mm to 3472mm
*3 professional solid vials(90degress, 180degress, 90degrees), the accuracy is 0.5mm/m
*Take "out-of-plumb" measurements quick an accurately.
*Built-in out of plumb measuring disk with scale.
*Combination fractional and metric ruler.
*Patented globally.

*Heavy duty aluminum frame for none warp or twist.
*Three fixed vials with professional accuracy 0.5mm/m(0.0005in/in)
*Double milled surfaces for high flatness.
*Large double color rubberized end caps for strong shock resistance.
*Two big rubberized handles for comfortable work.
*Two big hanging holes on end caps for convenient storage.
*Strong holding rare earth magnets(options).