Ivy-198 two(three) length main rules measure instrument: 1.Its small volume and light weight make the operation much convenient. A single person can use it. Meanwhile it is smart and time-saving during measuring. 2.On the direction of length, precise aluminum alloy thimble is divided into two (three) sections. With the custom-built guiding sheath and guiding plug, the gliding clearance is slight, which enable the meterage to be precise. 3.Automatic stable center and automatic adsorptive magnetic probe are provided, which make the orientation more exact and the operation more convenient. 4.Two measure poles are provided. This will help you to measure the height and length of reference points on different planes without any obstacles. The measuring results can be displayed directly. 5.The length of measurement rang from 50mm(50mm ) to 1760mm(2600mm). 6.Two taper gauge heads can measure the aperture up to 28mm, two gauge heads, used for measure screws whose diameters up to 24mm. two gauge head, used for measuring square crossbeam. Two measuring poles, able to measure distance with height up to 300mm. 7.All the tolls are matching with the documents provided by different auto makers. The measuring figures need not to be conversed, just read it directly. Dimension of the outer packaging (a box): 1160*150*90mm