ALVIN Academic Proportional Gearhead Divider and Drafting Compass Model 660 Ideal for Geometry and Engineering, Drawing and Architecture Tool - 6" inch

Good quality tool, just what I needed!

Quick shipping and professional packaging! Very pleased!This divider is a real beauty to work with! Recommended essential tool for drawing by both of my botanical art teachers.If you love precision in your drawing construction, you will love this deftly designed instrument. From checking angles and comparing proportions for drawing accuracy, this is tool is it.Love how it feels to hold it. I prefer its weighty yet compact metal construction better than the plastic ones out there.Only thing I regret is not having this tool earlier in my art career.

For measuring roof angles this is good for straight on angles not side views but good for composition measuring

Very nicely done well built and very expensiveHelps be a lot when I’m stretching

The hinge is plastic so it's not a highly precise instrument. The tips did not perfectly align so I trimmed/sanded the long one down about 0.5mm and now it's perfect. It's inexpensive so I would purchase again because I love the size and it's more robust than the 100% plastic ones. I use it for art pencil drawings.

I bought this ALVIN Academic Proportional Gearhead Divider for measuring proportions and angles for when I draw. I can’t attest to the longevity of it, but I can say that it appears to be well made, and works exactly as I hoped it would. It holds itself steady at the measurement I have it in until I move it. The very tips of the top are very pointy and sharp, so take care to keep it away from curious littles. I will probably buy a second one to put in my traveling art kit.

Works as advertised, and it arrived quickly enough :) I'm pleased with it's quality.

The instrument is of good quality and a reasonable price. Unfortunately, the plastic case was damaged in shipping and cracked across the face which means storage will become an issue later on.