This second image draws attention to the precision and the variety in outcomes of a compass. The changes can be subtle or drastic. Perhaps it is a simple half turn of the dial that yields the desired diameter. The product of a compass is not always fixed, altough it can allow for the same continuous arc or circle to be produced effortlessly. A compass is also flexible without loosing its precision. The simple widening of the compass can make the difference. Even though a compass has a very specific job, there is still variety in its function.