The circle leaves no wish unfulfilled. By jig rapid adjustment is possible and the current setting is kept safe. If the mines times not be present or would like to draw colored circles, a pencil or crayon is simply clamped. The ability to bend the leg again, it is possible to draw very large circuits safely and with fine grain. The circle is a huge success and you will find the "waste unit" usually on the shelves of stores not to compare. The price is actually almost too low. My daughter is almost envious of the good piece.