Geometry set Happy Color — ruler 15 cm, 2 set squares (60° and 45°), protractor 180°

Happy Color geometry set includes a 15 cm straight ruler, two set squares (one 60° and one 45°) and a 180° protractor. The kit is intended for school lessons, technical drawing and hobby projects where basic linear measurement and angle marking are required. The components are compact and lightweight, designed to fit easily into a pencil case or backpack and to withstand everyday classroom use.

Advantages

The set provides the fundamental tools needed for geometry and drafting in a single package. The 15 cm ruler offers clear graduations for precise measurements while the two triangular set squares allow construction and checking of common angles. The 180° protractor enables accurate angle measurement and transfer. All parts are made to lie flat for stable drawing and consistent results, and the slim profile supports convenient storage.

Suitable for

• School mathematics and geometry exercises
• Technical drawing and simple drafting tasks
• Homework and classroom use
• Hobby projects, model making and craft work

Key specifications

• Ruler length: 15 cm with visible metric graduations
• Set squares: one 60° triangle and one 45° triangle for angle construction
• Protractor: semicircular 180° scale for measuring and marking angles
• Material: lightweight transparent plastic for visibility of drawn lines
• Design: slim and flat for stable placement during use and easy storage

How to use

Place the ruler or set square on the drawing surface and align it with the reference points or grid lines. Use the ruler to measure lengths and draw straight lines. Use the 45° or 60° set square to draw or verify right angles and common inclined angles by aligning one edge with an existing line and drawing along the other edge. To measure or mark arbitrary angles, position the protractor with its center point at the vertex, read the degree value on the curved scale and mark the angle before connecting the vertex to the mark with a ruler or set square.

Usage recommendations

Store the set in a pencil case or protective sleeve to avoid bending. Clean with a soft, dry cloth; avoid abrasive cleaners or high temperatures. For precise technical work, use a stable drawing surface and a sharp pencil or mechanical pencil for finer lines.