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Type: Triangle Set Square with Pen
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Size: 31×45 (Refers to the angles of the set square, typically 31° and 45°, or the dimensions of the tool used)
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Material:
- Plastic or Acrylic for the set square, ensuring transparency and durability.
- Pen/Marker: Usually comes with a fine-tip pen or marker for easy drawing and marking. The pen is typically erasable or permanent depending on the set’s design and purpose.
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Dimensions:
- 31×45 usually refers to the angles 31° and 45° or the respective lengths of the set square’s sides.
- The set square is typically a right-angle triangle with precise 45° and 31° angles, making it perfect for geometric constructions and technical drawings.
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Design Features:
- Transparent Set Square: Often made from clear plastic or acrylic for better visibility of the lines or diagrams being worked on.
- Pen Holder or Attached Pen: Comes with a pen or marker (typically a fine-point marker or gel pen) that can be used to mark measurements, angles, and lines precisely.
Key Features:
- Accuracy and Precision: The 31° and 45° angles on the set square allow for precise angle measurements, ideal for drafting, geometry, and technical drawing.
- Pen Integration: The included pen (which may be erasable or permanent) provides convenience for directly marking and drawing angles, eliminating the need for a separate writing instrument.
- Durable Material: Made from high-quality plastic or acrylic, the set square is long-lasting and resistant to wear and tear, ensuring that it will last through frequent use.
- Easy to Use: The transparent design makes it easy to align the set square with paper for clear, accurate drawing. The pen holder ensures that you always have a tool for marking nearby.
- Multi-Functional: Suitable for use in mathematics, technical drawing, geometry assignments, architecture, drafting, and engineering.



