This machine quilting tool can be used with all machine types: longarm, midarm, or domestic. The overall size of Olivia is 3″ x 12″. It is used to create three sizes of hexagons: 1.25″, 1/75″ and 2″. The tool is packaged with a protective, brown sheet which should be removed to reveal a clear ruler. Use this tool with a gripping aid attached to the bottom and a ruler foot attached to the machine. The slots allow the needle to remain in the down position while shifting and adjusting the ruler.