300mm Precision Triangular 1=2500 Surveyor Scale Ruler

- Triangular scale rule with high grade print and 3 colour coded faces metric and scale graduations. - 12 Scales featured: - Side{phone=115015001}:250/1:2500 - Side 2 {phone=110011000} {phone=120012000} - Side 3 – 1:75/1:750 - Concave base to reduce smearing when drawing. - Made from shatter-proof white ABS plastic.