Offizeus Professional Compass for Geometry with Extra Lead Refills - Makes 10 Inch Circle - Math Compass, Drawing Compass - Metal Precision Bow Compass with Lock - for Drafting, School, Woodworking

Es bueno pero muy caro creo que se puede conseguir a un precio mucho mas barato

Very happy with this compass. I basically only use it to draw circles for Mandalas. I had 3 others that just didn’t hold up. I love that I can lock the position into place and I get perfect circles every time. Pencil lead easy to adjust, has a decent heft without being too heavy. I would definitely recommend.

I had a set that included a compass, but it didn't lock into place, so trying to teach a beginner how to hold it steady wasn't going very well. This one has the wheel to wind it out to where he needs it and it stays in place for him to use it without worrying about it sliding in or out. This one comes with extra lead and even a couple of extra screws and wheels, and it seems to be pretty sturdy. It's reasonably priced and good quality, so I'd recommend it.

The compass is simple and is supplied complete with leads including spares in little tubes.Having said that, the compass is excellent in use. The "legs" are held firmly in place making it easy to draw accurate circles and yet they easily adjusted. It was just what I wanted. I have need to draw many circles on wood and have bought several compasses including so called professional ones. They have all been a disaster! This one however is perfect. It is simple , sturdy and precise. It does what it says on the tin!

De loin le meilleur compas qu'il m'ait été donné d'utiliser. Grâce à sa molette, l'écartement entre les branches ne bouge pas d'un millimètre lorsqu'on l'utilise.