Ruler, with Braille numbers and tactile markings every 5mm

Ruler 30cm, for blind people, yellow
All numbers in 8 point Braille over high-contrast black lettering.
Practical stop edge at the zero.
2 holes for pins to secure and right and left.
Markings indicate each cm with a tactile line.
Additionally, notches per cm help you count when drawing.
One dot marks 5mm.
A slightly rough grip surface runs along the lower edge.
Material: plastic, thickness 2mm.

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