This 19-piece mechanical drawing tool set meets precise drawing needs for civil engineering, construction, and technical tasks. It includes key tools like a compass (26cm effective measuring distance), a divider (25cm effective measuring distance), and multifunctional scale triangle rulers with accurate, fade-resistant scales. All tools are stored in a convenient canvas bag for easy storage and transport, making it ideal for both students and professionals to create accurate, detailed drawings. Slight colour differences may occur due to lighting and screen settings, and 1-3cm size error is allowed from manual measurement. Features: 19-Piece Comprehensive Set: Covers essential tools for mechanical, civil engineering, and construction drawing. Accurate Scale Rulers: Multifunctional triangle rulers feature fade-resistant scales for reliable use. Organised Canvas Bag: Keeps tools neat, accessible, and easy to carry. Versatile Usage: Suitable for students and professionals in academic and technical drawing. Specifications: Material: Plastic Colour: Multiple colours Compass Effective Measuring Distance: 26cm (1-3cm error allowed) Divider Effective Measuring Distance: 25cm (1-3cm error allowed) Quantity: 19PCS Package Includes: 1 × 19-Piece Mechanical Drawing Tool Set (with canvas storage bag). Note: Please allow 1-3cm size error due to manual measurement. Slight colour variations may exist due to lighting and monitor settings. Handle precision tools carefully to maintain their accuracy. Store tools in the canvas bag when not in use to prevent loss or damage. Avoid dropping tools to avoid affecting measurement precision.