• 3D Gradient Design: These rulers feature a vibrant color transition (gradient) and a three-dimensional triangular prism shape.
• Optical Effect: When placed in sunlight, the transparent acrylic material can refract colored light beams.
• Clear Double-Sided Scale: The scale is printed to be easily readable from both sides of the triangular faces, ensuring precision for drawing and math.
• Compact 15cm Size: This length is specifically designed to fit easily into standard student pencil cases for portability.
• Versatile Angles:
  
  
  
  The triangular shape naturally provides guides for 45° and 60° angles,
  
  
  
  making it useful for creating symmetrical designs or equilateral
  
  
  
  triangles