Make a perfect circle every time with VViViD's Circut Paper Cutter. This handy, lightweight tool can cut circles that meet your exact measurements every time, from .5” in diameter to 6.5” at its highest setting. The diameter is easily adjusted with the locking ruler; simply lift the middle tab and slide the ruler by hand. When you're ready, just press down on the central tab button and rotate the unit to make your cut. It's just that easy! Best of all, you receive three blades in total with this unit, as well as a self-healing cutting mat features a gridded, ruled side and diameter measuring side. This product should be used slowly.