These True Flameworking Jacks are the first of their kind. They are made with the same trusted heat tempered stainless steel as the popular mini jacks. This kind of tempering allows the jack's blades to tolerate constant exposure to heat and direct flame. The jack blades are 2.75" long and have a rounded back edge. The top curves in and comes to a fine point. The blades have been turned 90 degrees from the arms like traditional jacks. The overall length of 11.25" make these jacks truly the correct scale for flameworking.