Protractor 15cm yellow with tactile markings for blind people

Half-round protractor yellow 15cm, 3D printed.
Black lines every 10 degrees. Additionally, notches every 10 degrees help you count while drawing.
Base with a notch in the middle.
3 holes for fixing with pins on the base.
45 and 90 degrees marked with dashed lines.

Material: plastic, thickness 2mm

Shipping within 3-5 working days after advance payment on account, shipping costs 4.19€ within Germany