Helix Circle Ruler

This 2in1 ruler and compass lets you draw circles from 1 to 12 Place the center disk hole on your starting point and choose your desired circle size

Maped Helix USA OFFPRB003155XYO Maped Study Geometry 10 Piece Set, Includes 2 Metal Study Compasses, 2 Triangles, 6 Ruler, 4 Protractor, Pencil for Compass, Pen

Helix 12 inch 30cm Steel Ruler

Helix Circle Ruler This dual-purpose ruler also works as a compass, allowing the you to make circles from 1/16 to 12 in diameter. A useful tool for draftsmen, students, artists and crafters who require precise, measured lines. Great for mathematic calculations, technical drawings and designing patterns.

Helix - Circle Ruler

This 2-in-1 ruler/compass let you draw circles from 1 to 12. Place the center disk hole on starting point and choose desired circle size (1/8

Helix Circle Ruler - 12, Assorted

Flexible Drawing Ruler Helix Flexible Curve Technical Drawing Ruler 60cm / 24 Inch Blue Perfect for Creative Crafts, Drawing, Design

2-in-1 Circle Ruler Measuring & Compass Tool 12 / 30cm - MAP36001

Rulers & Measurement — Marston Moor

Helix Circle Ruler

This 2in1 ruler and compass lets you draw circles from 1 to 12 Place the center disk hole on your starting point and choose your desired circle size

Helix Circle Ruler

Helix 2-in-1 Circle Ruler Measuring & Compass Tool 12 / 30cm, Pack of 5