ROKOO Rolling Parallel Ruler 30cm, Measuring Rolling Ruler Protractor Professional Technical Drawing Design Examination Ruler for Measuring, Drafting, Student, School

Im glad to say - no surprice - everything seems to be as described

Ok, but its a pity that the instructions on the box aren't in English.

Use this product before

I use this when drafting my paintings. The ruler is crystal clear, so you can see the work underneath. If you need parallel lines, the roller part works extremely well, keeping the ruler edge parallel to the previous line. Low cost, works great, no complaints whatsoever.

Ruling columns in accounts book & for marking fabric