The Bone Tool (cutmt3-4) is manufactured by FMM Sugarcraft, it is a very versatile tool for any cake designer. The Dogbone gives you two size offset balls to feather the edges of your gumpaste flowers and round them as needed. Using this tool on a foam pad, lightly dip it into cornstarch to prevent sticking and thin the edges or use on the center of petals to help shape them. The tool is approximately 5-1/2" long. FMM includes instructions for their use in the package. This modeling tool is made from a long wearing food safe & easy to clean plastic in England by FMM Sugarcraft.