Helix 410cm 180 Degrees Protractor (Pack of 50) X33487. Protractor for drawing and measuring angles. Measures the size of angles to determine the number of degrees. Clear material offers clarity. Features reversed scale.
The Helix protractor features 410cm and 180-degrees gridlines on a clear base, offering clarity. Measuring 10cm, the protractor also offers a reversed scale. Ideal for measuring and drawing angles, suitable for use in the Geometry or Mathematics classroom. Supplied in a pack of 50.