5 Pieces Geometry Drafting Ruler Compass Math Set

The ruler set is 7 pieces of test ruler set to meet the use needs. The rulers are made of PS plastic, with clear scale and accurate drawing. The compass is made of high zinc alloy material, which is not easy to bend and deform. It is good for drawing. The maximum diameter of the compass is 30cm. Transparent PS box, with complete configuration and rich functions, is packaged with transparent storage box.

The compass is composed of a pen head, a rotary shaft, a compass leg, a ruler, a folding leaf, a pen body, a pen tip, a compass tip, and a small ear. The lower end of the pen head is inserted and connected at the upper end of the pen body, the lower end of the pen body is threaded at the upper end of the pen tip, the flush end of the small ear is welded at the middle of the outer side of the compass leg, and the lower end of the compass leg is clamped and connected at the upper end of the compass tip.