Measure or draw precise lines with ARDA triangle rulers made of transparent polystyrene. Suitable for use in the home, office, or school, ARDA triangle rulers are designed to be stable and safe to use.

Key features include:

• Angled dimensions: 30°, 60°, and 90°
• Material: Polystyrene
• Colour: Transparent
• Quantity: 20
• Length: 20cm
• Felt edges: Useful for geometric purposes

Thanks to their transparent casing, the triangle rulers are practical for use in geometry.