Professional Compass, Compass Geometry Set with Lock, Math and Precision Compass, Metal and Durable for Solid and Plane Precision Tool, Fit for Drafting, Drawing, Measuring black

PRECISION MATH COMPASS - Made for mathematical geometry and art drawing. Unique design to prevent slip while drawing.

PRECISE ADJUSTMENT - The adjustment knob enables students to produce accurate geometric constructions. You can lock the compass in place and have it actually stay when writing.

ADJUSTABLE SIZE - Maximum diameter up to 10 inches, minimum for 1/8 inch. You can draw all kinds of circles.

ALL-METAL MATERIAL - Made from high quality parts and solid construction, durable enough to last for a long time. Three additional leads are easy to replace when needed.

Stability: The compass with spring bow head and thumbwheel could prevent from unintended slide.

colour: black

Materials: Metal

Package Contents:

1 * Precision Compass

2 * Spare Screws

3 * Spare Lead

Only the above package content, other products are not included.

Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

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