Akuoly Maths Compasses Full Starter Geometry Kit with 2 Drafting...

THOUGHTFUL DESIGN: This Geometry compass has spring bow head, center wheel and automatic locking mechanism, so it can prevent the accidental movement of legs and help you stably draw lines, easy to use and good use feeling. QUALITY MATERIAL: The Drawing Compass is made of quality carbon steel, plated and strong structure, which has good toughness and high hardness, so it is strong, durable for long-term use and not easy to rust, bringing convenience to your work or study. SIMPLE STRUCTURE: The structure of circle compass is classic, simple and easy to operate, rotate the center wheel to easily control the size of the circle. Even novices can master skills quickly.