Fun Learning Ruler Set with Kurun Pass / Sonic

• Contents: Straight ruler, set square, protractor, Kurun Pass compass
• Product dimensions: 78 × 194 × 22 mm
• Package dimensions: 240 × 95 × 23 mm
• Ruler material: PMMA
• Case material: PS
• Kurun Pass material: Die-cast (color painted)
• Color: Blue
• Pack contents: 1 set

The centerpiece of this set is the Kurun Pass, a compass designed specifically for younger students who struggle with the standard pivot-and-draw method. Instead of pressing a sharp needle into the paper and rotating a pencil arm around it, the Kurun Pass uses a rolling mechanism that keeps the center point stable and reduces slipping. The "Kurun Cap" doubles as a safety needle cover, addressing a common classroom concern.

The rest of the set follows the same logic: every tool includes visual guides to reduce common mistakes. The protractor has color-coded reference lines for easier centering. The set square uses colored edges to help students draw clean vertical and parallel lines by alignment rather than estimation. The straight ruler includes a margin scale to simplify line placement on notebook paper. Each piece is designed so the correct technique is the obvious one.