The cutter cuts perfect circles from 4" to 12" in diameter at 1/8" increments. Its double-sided blade allows for clockwise and counterclockwise cutting and when not in use, the blade docks safely in the base of the cutter. It has easy to read measurement markings and a soft-grip handle and shuttle for precise cutting and control. This package contains 1 circle cutter (2" x 9" x 4") and 3 replacement blades. Caution: blades are extremely sharp: handle with care.