The wheel is flimbsy and does not turn well, leading to uneven circles, which is the point of the entire thing.

It's near impossible to make an even halfway decent circle using this thing.

The center circle sometimes gets hung up while you're using it so you rarely get a smooth circle.

Ok but the small spinner circle in the middle has a notch that gets caught and it won't make good circles it skips and makes the whole compass move.

If you're only using it for fairly accurate circles, then it's fine, but if you want the ruler, as well, then this will fall short of your needs.

Plastic is not as sturdy as I was hoping for but works well and creates smooth circles.

but it wiggles and gives weird shaped circles

im constantly having to draw perfect circles

Perfect circles every time

As soon as I opened the package I noticed how ridiculously flimsy it was, forget packing this with all of your supplies if you're a younger student or an avid traveler - it will break or you will lose the spinning circle in very short time

enable me to draw good circle with known radius easily

If you need really precise circles, look at a traditional compass or something else

I've found that sometimes the inner wheel (the part of the compass that you hold down when you draw circles) gets jammed, and you may have to snap it out and put it back in to regain functionality

I have figured out that I need to apply a bit of pressure away from the center of the circle to get more precise circles