Angle Finder 90 Degrees Scale Increments 0 Degrees To 90 Degrees In Quadrant Accuracy 0.5 Degrees Base Length (in) 5 in Overall Height (in) 5 in Lens Diameter 4 in Number of Level Vials 2 Number of Plumb Vials 1 Blue High Impact Plastic Body Base and Side V-Grooves for Round Surfaces For Angle Identification With Plumbing Electrical and HVAC Work