SFHDF Adjustable Pencil Compass Ruler Metal Unique Design Geometry Tool Professinal Sketch 3 in 1 Compasses Student Exam

Material: Zinc Alloy Package Contents:1Pc Pencil Compass Ruler with Pencil RefillsColor: green/blue/pink/yellow Size: 16535mm(6.501.38in) item: Pencil Compass Geometric and artistic drawing. Unique design preventsSlip while drawing. Precise Adjustment - Adjustment Knob Enabled Students make accurate geometric structures. You can lock the compass in place and actually use it stay while writing. Adjustable size - up to 13 inches, with a minimum of 1/8 inch. you can draw all kinds of circle. Metal + plastic material - made of high quality parts Sturdy construction, durable enough to last long time. Stability: Compass with spring bow head and Thumbwheel prevents accidental slippage.