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 ruler set automatic lead core window opening model has a metal compass, a 15cm ruler, a protractor, a 45 ° right triangle ruler, a 60 ° right triangle ruler, an eraser and a box of 0.7 lead core. The compass is made of stainless steel metal, which is more durable, with smooth lines and accurate drawing. The maximum diameter can reach 290mm.