Multi-Level Funcation

1).Aluminum alloy body powder coated and metric scale printed by which can measure length.2).Measure angle 0° 270°,based on B ruler on a need checking plane, turning T ruler till the centre level vial at centre,the finger indicatethe angle to the earth,tolerance of accuracy:±0.5°.3).Measure across angle from 0° to 270°only based on B/T ruler on each checking plane, the finger indicate the across angle and thentighten the screws to copy the angle to other place if needed.4).Measure level(0°) and plumb(90°) based on T ruler seeing 2 level vials,tolerance of accuracy:0.057°=1mm/m.5). Inner packed with film shrinking and out packed with strong carton.6).No toxic material allowed (PAH and Cadmium free).7).Logo printed as per your design.