The Helix Angle Measure comes with a unique rotating device to allow you to measure angles conveniently.
Measure different angles without changing positions using this angle measure. It comes with two distinguishable measurement scales for easy identification and it can be used to measure angles in any position. This 360 degree protractor features clear and readable graduation marks and its central rotating device can be easily moved around, for added convenience.
360 deg. angle measure for use at school or at work