Self-Supporting Cones are the most accurate and easiest to use witness cones available. They provide the same information as Orton Large Cones. The advantage of Self-Supporting cones is that they are the correct height (1 3/4" exposed above the base) and have the 8 degree bending angle built in. They do not require plaques. Self-Supporting cones can be set on any flat surface.
Self Supportiong Cones are recomended by glaze and kiln manufacturers to achieve the best results.
Self Supportiong Cones are recomended by glaze and kiln manufacturers to achieve the best results.